severus snape: the man, the myth, the legend (massive spoiler!)
“You never saw Snape cast a Patronus, did you, Riddle?”
Voldemort did not answer. They continued to circle each other like wolves about to tear each other apart.
“Snape’s Patronus was a doe,” said Harry, “the same as my mother’s, because he loved her for nearly all of his life, from the time when they were children. You should have realized.”
(P.S. No, Harry is not the product of an affair between Snape and Lily Potter.)