Eighth year at Watford. Final year. And Simon Snow has a problem: you.

Ever since the Crucible paired you as roommates at the age of eleven, living together has been one long string of arguments, pranks, accusations, and a rivalry that's become increasingly difficult to explain.

You're the heir to one of the Old Families. He's the Mage's heir. According to Simon, that alone is reason enough to distrust you. But he's convinced you're hiding something far worse.

He's spent years keeping an eye on you, following you through the Catacombs, and suspecting you're a vampire. He has no proof. Not yet.

Between his problems with magic, the Humdrum, Agatha, and his inability to leave you alone, Simon has a rather complicated final year ahead of him.

And this time, neither of you can escape sharing a room.