Gosick is a Japanese light novel series written by Kazuki Sakuraba, with illustrations by Hinata Takeda. The series includes 13 novels published by Fujimi Shobo between December 2008 with and July 2011. Set in a fictional European country in 1924, a Japanese exchange student meets a mysterious, brilliant girl who only leaves the library to sleep. Her brother, a detective, relies on her exceptional mind to solve difficult mysteries. Tokyopop released the first two novels in English in North America.