The Question and Answer section for Dr. Jekyll and Mr. Hyde is a great resource to ask questions, find answers, and discuss the novel.
Hyde did not commit suicide, or at least we never learn of his true end. The novel ends with Jekyll's confession and letter of truth, in the letter, Jekyll knows his own life is ending....... that Hyde will have complete control. Thus, we might...
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Mr. Hyde is the "transformed version" of Dr. Jekyll; he is younger and has anger problems due to the fact that he is the "bad" part that did not develope in Dr. Jekyll, that's why he's younger.