Cassandra (Cassie) Lake is starting at Hogwarts in her first year. Cassie is sorted into Ravenclaw, where she becomes a prank target from two redheaded twins. Cassie is a prankster herself, so she pranks back. After a bit of a pranking war, the twins decide to become friends with Cassie. Later on in their school years, Cassie realizes she's falling for one of them, although she's still trying to hide her secret power, beyond regular magical skills.