Yami to Boushi to Hon no Tabibito (possibly translated as Darkness, the Hat, and the Travelers of the Books), also known as Yamibou for short, is a Japanese adult visual novel published in December 2002 by Root. A 13-episode anime series produced by Studio Deen aired between October and December 2003. Although the characters and their relationships remain basically the same in the game and anime, the storyline is quite different.