Tiny Tim's Death and Scrooge's Redemption
The emotional whiplash continues as we see the Cratchit family grieving Tiny Tim's death. Bob's heartbroken cries of "My little, little child!" show the complete opposite of how people react to Scrooge's death - this is genuine love and loss.
Tiny Tim, even whilst dying, comforts his father with "Don't mind it, father. Don't be grieved!" This innocent child's selflessness contrasts sharply with Scrooge's lifetime of selfishness, making Scrooge's transformation even more urgent.
Scrooge's final plea is absolutely desperate: "I am not the man I was" and his promise to "honour Christmas in my heart" shows complete surrender to change. He's begging for redemption, willing to embrace everything the three spirits have taught him.
The fact that he wants to "sponge away the writing on this stone" (his own gravestone) shows he finally understands that the future can be changed through present actions.
Key Point: Scrooge's transformation is complete when he sees both the meaningless death he'll have and the meaningful death Tiny Tim would have - inspiring his final change.