“Gosick” is a Japanese light novel series penned by Kazuki Sakuraba and published by Fujimi Shobo. The story unfolds in a fictional European nation in 1924, where a Japanese exchange student encounters a mysterious and intellectually gifted girl who only leaves the library to sleep. Her brother, a detective, depends on her extraordinary intellect to crack challenging cases.

Tokyopop brought the first novel to English readers in April 2008, followed by the second in March 2010. Since November 2006, the series has been available in Germany through Tokyopop. A manga version began its run in the shōnen manga magazine Monthly Dragon Age on December 9, 2007. An anime adaptation by the studio Bones debuted on January 7, 2011, with Crunchyroll streaming it simultaneously with its Japanese airing and continuing to offer it online. At Otakon 2011, Bandai Entertainment revealed plans to release the series in North America. However, in January 2012, Bandai Entertainment announced their exit from the North American market, leading to the cancellation of GOSICK’s release there.