Snape is an exceptionally skilled wizard who teaches Potions at Hogwarts School of Witchcraft and Wizardry. In the sixth book, he teaches Defense Against the Dark Arts, in a position that is known to have wanted throughout history. For most of the series, Snape\’s actions seem to serve the greater villain, Lord Voldemort, despite Harry\’s mentor Dumbledore often advising Harry that, despite Snape\’s actions and animosity, he and his real loyalties are reliable . In the sixth book, Snape kills Dumbledore and becomes the director of Hogwarts. However, in the final chapters of the seventh book, he dies at the hands of Voldemort, attacked and mortally wounded by Nagini, the Dark Lord\’s serpent, revealing his memories and Harry\’s real backstory, in his last minutes, to the reader. In the epilogue, Harry describes him as \”one of the most valiant men he has ever met\”.