Harry Potter: The Sorcerer's Stone

Professor Severus Snape is depicted as the cold Potions master who was annoyingly biased against Harry Potter throughout the first six books of the series, and readers generally find increasing dislike for him until in the final book, it is revealed that his intentions were kind and he had actually been best friends with Harry Potter's mother, Lily. All of his seemingly evil actions turned out to be actually planned out with Dumbledore, the headmaster of Hogwarts, to bring victory against Lord Voldemort in the end. Wouldn't it be interesting to know what exactly was going through Professor Snape's mind throughout the seven years of Harry Potter's journey in defeating Voldemort and getting an education at Hogwarts? Here's to Severus Snape!

All credits to J.K. Rowling for the fabulous creation of an infinite world.