Being consummate fans of the Simon Snow series helped Cath and her twin sister, Wren, cope as little girls whose mother left them, but now, as they start college but not as roommates, Cath fears she is unready to live without Wren holding her hand--and without her passion for Snow.

Cath is a Simon Snow fan. Okay, the whole world is a Simon Snow fan, but for Cath, being a fan is her life--and she's really good at it. She and her twin sister, Wren, ensconced themselves in the Simon Snow series when they were just kids; it's what got them through their mother leaving. Cath's sister has mostly grown away from fandom, but Cath can't let go. She doesn't want to. Now that they're going to college, Wren has told Cath she doesn't want...