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Knowunity Cyborg
11/07/2025
English Literature
The Sign of Four Knowledge Organiser
2,351
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11 Jul 2025
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Knowunity Cyborg
@knowunitycyborg
The Sign of Fouris a gripping Sherlock Holmes mystery... Show more
Sherlock Holmes, the protagonist of The Sign of Four, is one of literature's most iconic detectives. Created by Sir Arthur Conan Doyle, Holmes embodies the pinnacle of logical reasoning and deductive skills. This chapter delves into Holmes' character, highlighting his unique traits and memorable quotes.
Holmes is characterized by the following attributes:
Highlight: Holmes' exceptional deductive abilities and his disdain for emotions set him apart as a unique and compelling character in detective fiction.
Some of the most notable quotes that illustrate Holmes' character include:
Quote: "For me there still remains the cocaine bottle"
This quote reveals Holmes' darker side, hinting at his drug use when not engaged in solving cases.
Holmes' physical appearance is described as having "clear-cut, hawk-like features" , emphasizing his sharp and observant nature. His movements are often described as swift and silent, likened to those of a "trained bloodhound" .
Example: Holmes' keen eye for detail is demonstrated when he "whipped his lens out of his pocket and carefully examined marks" , showcasing his meticulous approach to investigation.
Throughout The Sign of Four, Holmes' character serves as a counterpoint to the more emotional and romantic Dr. Watson. His logical approach to solving mysteries and his disdain for the "dull routine of existence" make him a fascinating and enduring literary figure.
Dr. John Watson, the narrator of The Sign of Four, plays a crucial role in the story as Sherlock Holmes' friend, colleague, and chronicler. This chapter explores Watson's character, his relationship with Holmes, and his romantic involvement with Mary Morstan.
Watson is characterized by the following traits:
Highlight: Watson's emotional depth and human qualities provide a perfect counterbalance to Holmes' cold logic, making their partnership both effective and engaging for readers.
Some notable quotes that illustrate Watson's character include:
Quote: "We stood hand in hand, like two children, and there was a peace in our hearts for all the dark things that surrounded us"
This quote beautifully captures Watson's romantic nature and his growing feelings for Mary Morstan.
Watson's role in the story is multifaceted:
Example: Watson's loyalty to Holmes is evident throughout the novel, as he accompanies the detective on dangerous missions and assists in his investigations.
The development of Watson's relationship with Mary Morstan is a significant aspect of the story:
Quote: "this treasure, these riches, sealed my lips. Now that they are gone I can tell you how I love you."
This final quote encapsulates Watson's honorable nature and the resolution of his internal conflict, leading to his engagement to Mary.
Dr. Watson's character in The Sign of Four not only serves as a foil to Sherlock Holmes but also provides readers with a relatable and sympathetic figure through which to experience the thrilling events of the story.
The Sign of Four, set in Victorian London, offers a rich tapestry of themes and contextual elements that reflect the society and concerns of the time. This chapter explores the historical and social context of the novel, as well as its major themes.
Victorian London: The novel vividly portrays London in the 19th century, a city of stark contrasts between wealth and poverty. Doyle's descriptions of the city's dense fog create an atmospheric backdrop for the mystery.
Example: The fog of London serves as both a literal setting and a metaphor for the mystery that shrouds the case.
Crime and Police: The Metropolitan Police force, established in 1829, was still relatively new and often perceived as disorganized and incompetent. This context explains the public's reliance on private detectives like Sherlock Holmes.
Highlight: The incompetence of the official police force, represented by Detective Athelney Jones, contrasts sharply with Holmes' brilliant deductions.
Women in Victorian Society: The novel reflects the restricted rights and status of women in Victorian England. Mary Morstan's character, while strong, is still bound by societal expectations.
Definition: Coverture was a legal doctrine that suspended a woman's legal identity upon marriage, transferring her property rights to her husband.
The British Empire: At the time of the novel's publication, the British Empire was at its height. The story's connection to India reflects the public's fascination with Britain's colonial possessions.
Vocabulary: The Agra treasure in the story represents the wealth and exotic allure of Britain's colonial territories.
Class Divide: The novel portrays the clear class distinctions in Victorian society, with characters from various social strata interacting throughout the story.
Major Themes:
Quote: "I am the last and highest court of appeal in detection." - Sherlock Holmes
This quote encapsulates Holmes' supreme confidence in his abilities and the public's reliance on private detectives in Victorian England.
Understanding these contextual elements and themes enhances the reader's appreciation of The Sign of Four, providing insight into the societal norms, fears, and aspirations of Victorian England.
This page focuses on Jonathan Small, the antagonist whose actions drive the plot of The Sign of the Four.
Quote: "Twenty long years in that fever-ridden swamp... all night chained up."
Definition: Antagonist - The character who opposes the protagonist and creates the central conflict.
Character traits include:
The Sign of Four, one of Sir Arthur Conan Doyle's most famous Sherlock Holmes stories, presents a complex plot filled with mystery, adventure, and romance. This chapter introduces the main characters and outlines the key events of the story.
The plot unfolds as follows:
Highlight: The plot skillfully intertwines elements of mystery, adventure, and romance, keeping readers engaged throughout the story.
The main characters in the story are:
Vocabulary: The "Sign of Four" refers to a secret pact made by four convicts in India, which becomes central to the mystery.
The novel explores several themes, including:
Definition: The Baker Street Irregulars are a group of street children employed by Holmes as spies and informants.
This chapter sets the stage for a thrilling adventure that showcases Holmes' detective skills while providing insight into Victorian society and the complexities of the British Empire.
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
You can download the app from Google Play Store and Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
App Store
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
Knowunity Cyborg
@knowunitycyborg
The Sign of Fouris a gripping Sherlock Holmes mystery that combines elements of Victorian detective fiction with themes of imperialism, greed, and romance. The story follows Holmes and Dr. Watson as they help Miss Mary Morstan solve the mystery... Show more
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Sherlock Holmes, the protagonist of The Sign of Four, is one of literature's most iconic detectives. Created by Sir Arthur Conan Doyle, Holmes embodies the pinnacle of logical reasoning and deductive skills. This chapter delves into Holmes' character, highlighting his unique traits and memorable quotes.
Holmes is characterized by the following attributes:
Highlight: Holmes' exceptional deductive abilities and his disdain for emotions set him apart as a unique and compelling character in detective fiction.
Some of the most notable quotes that illustrate Holmes' character include:
Quote: "For me there still remains the cocaine bottle"
This quote reveals Holmes' darker side, hinting at his drug use when not engaged in solving cases.
Holmes' physical appearance is described as having "clear-cut, hawk-like features" , emphasizing his sharp and observant nature. His movements are often described as swift and silent, likened to those of a "trained bloodhound" .
Example: Holmes' keen eye for detail is demonstrated when he "whipped his lens out of his pocket and carefully examined marks" , showcasing his meticulous approach to investigation.
Throughout The Sign of Four, Holmes' character serves as a counterpoint to the more emotional and romantic Dr. Watson. His logical approach to solving mysteries and his disdain for the "dull routine of existence" make him a fascinating and enduring literary figure.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Dr. John Watson, the narrator of The Sign of Four, plays a crucial role in the story as Sherlock Holmes' friend, colleague, and chronicler. This chapter explores Watson's character, his relationship with Holmes, and his romantic involvement with Mary Morstan.
Watson is characterized by the following traits:
Highlight: Watson's emotional depth and human qualities provide a perfect counterbalance to Holmes' cold logic, making their partnership both effective and engaging for readers.
Some notable quotes that illustrate Watson's character include:
Quote: "We stood hand in hand, like two children, and there was a peace in our hearts for all the dark things that surrounded us"
This quote beautifully captures Watson's romantic nature and his growing feelings for Mary Morstan.
Watson's role in the story is multifaceted:
Example: Watson's loyalty to Holmes is evident throughout the novel, as he accompanies the detective on dangerous missions and assists in his investigations.
The development of Watson's relationship with Mary Morstan is a significant aspect of the story:
Quote: "this treasure, these riches, sealed my lips. Now that they are gone I can tell you how I love you."
This final quote encapsulates Watson's honorable nature and the resolution of his internal conflict, leading to his engagement to Mary.
Dr. Watson's character in The Sign of Four not only serves as a foil to Sherlock Holmes but also provides readers with a relatable and sympathetic figure through which to experience the thrilling events of the story.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
The Sign of Four, set in Victorian London, offers a rich tapestry of themes and contextual elements that reflect the society and concerns of the time. This chapter explores the historical and social context of the novel, as well as its major themes.
Victorian London: The novel vividly portrays London in the 19th century, a city of stark contrasts between wealth and poverty. Doyle's descriptions of the city's dense fog create an atmospheric backdrop for the mystery.
Example: The fog of London serves as both a literal setting and a metaphor for the mystery that shrouds the case.
Crime and Police: The Metropolitan Police force, established in 1829, was still relatively new and often perceived as disorganized and incompetent. This context explains the public's reliance on private detectives like Sherlock Holmes.
Highlight: The incompetence of the official police force, represented by Detective Athelney Jones, contrasts sharply with Holmes' brilliant deductions.
Women in Victorian Society: The novel reflects the restricted rights and status of women in Victorian England. Mary Morstan's character, while strong, is still bound by societal expectations.
Definition: Coverture was a legal doctrine that suspended a woman's legal identity upon marriage, transferring her property rights to her husband.
The British Empire: At the time of the novel's publication, the British Empire was at its height. The story's connection to India reflects the public's fascination with Britain's colonial possessions.
Vocabulary: The Agra treasure in the story represents the wealth and exotic allure of Britain's colonial territories.
Class Divide: The novel portrays the clear class distinctions in Victorian society, with characters from various social strata interacting throughout the story.
Major Themes:
Quote: "I am the last and highest court of appeal in detection." - Sherlock Holmes
This quote encapsulates Holmes' supreme confidence in his abilities and the public's reliance on private detectives in Victorian England.
Understanding these contextual elements and themes enhances the reader's appreciation of The Sign of Four, providing insight into the societal norms, fears, and aspirations of Victorian England.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
This page focuses on Jonathan Small, the antagonist whose actions drive the plot of The Sign of the Four.
Quote: "Twenty long years in that fever-ridden swamp... all night chained up."
Definition: Antagonist - The character who opposes the protagonist and creates the central conflict.
Character traits include:
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
The Sign of Four, one of Sir Arthur Conan Doyle's most famous Sherlock Holmes stories, presents a complex plot filled with mystery, adventure, and romance. This chapter introduces the main characters and outlines the key events of the story.
The plot unfolds as follows:
Highlight: The plot skillfully intertwines elements of mystery, adventure, and romance, keeping readers engaged throughout the story.
The main characters in the story are:
Vocabulary: The "Sign of Four" refers to a secret pact made by four convicts in India, which becomes central to the mystery.
The novel explores several themes, including:
Definition: The Baker Street Irregulars are a group of street children employed by Holmes as spies and informants.
This chapter sets the stage for a thrilling adventure that showcases Holmes' detective skills while providing insight into Victorian society and the complexities of the British Empire.
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
You can download the app from Google Play Store and Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
App Store
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user