Who was the real Nicholas Flamel? How did the Sorcerer’s Stone get its power? Did J. K. Rowling dream up the terrifying basilisk, the seductive veela, or the vicious grindylow? And if she didn’t, who did?

Millions of readers around the world have been enchanted by the magical world of wizardry, spells, and mythical beasts inhabited by Harry Potter and his friends. But what most readers don’t know is that there is a centuries-old trove of true history, folklore, and mythology behind Harry’s fantastic universe. Now, with The Sorcerer’s Companion, those without access to the Hogwarts Library can school themselves in the fascinating reality behind J. K. Rowling’s world of magic.