The Book is a book on magic studied and updated by the Carpenter children. It is mentioned in "Zoo Day".
The Book was started by Molly Carpenter, before she grew up and forgot all things magical pertaining to childhood. Her siblings added to it in turn.
In the seriesEdit
In "Zoo Day", Harry Carpenter had passed the book to Margaret Angelica Dresden, and Mouse read it with her. It specifically references haunts, their characteristics and the ways to deal with them.