AS

When Hogwarts hires a brilliant twenty-eight-year-old potion researcher as Severus Snape’s new assistant, neither of them is pleased. Forced to work side by side, sharp arguments and bitter rivalry slowly give way to reluctant respect as strange incidents plague the castle. But with war approaching and dangerous secrets between them, the greatest challenge may not be solving the mystery—it’s tearing down the walls they’ve both spent years building.