6 books in series

Alcatraz vs. the Evil Librarians

Alcatraz vs. the Evil Librarians is a 6-book series with 6 primary works first released in 2007 with contributions by Brandon Sanderson and Janci Patterson.

Alcatraz vs. the Evil Librarians
The Scrivener's Bones
The Knights of Crystallia
The Shattered Lens
The Dark Talent
Bastille vs. the Evil Librarians