Gray is a promising student at Merlin College, studying the ancient art of magick, when one night changes his fate. When a midnight errands ends up with one of his classmates dead and Gray shouldering the blame, Gray is sent to spend the Long Vacation at the home of Professor Callender. There is no love lost between the two but Callender’s home is the safest place for Gray while he tries to find out what really happened that night and clear his name. The upside to his mandatory stay is that the Professor has a smart, inquisitive daughter who is intrigued by Gray. Sophie Callender and Gray become fast friends, though they must hide it. Sophie’s father has some antiquated ideas about women studying magick, so she must hide her association with Gray. However, as the two become closer they discover a sinister plot that they must stop. Along the way they discover secrets about their own pasts that make their mission even more dangerous.