The Cambridge University witches meet every month on the roof of one of the city's many colleges to discuss books and more, but lately the ties that bind them have begun to unravel. Amandine has the power to feel the emotions of those around her. Noa's ability is to hear others' innermost thoughts and secrets. Kat struggles with unrequited love, but refuses to use magic to win anyone's heart. Her sister, Cosima, is not above using such powers, sprinkling pastries in her bakery with sugar and enchantment. But when Cosima sets her sights on the love of Kat's life, she sets off a chain of events that turns each of the witches' worlds upside down . . .