Someone has broken into the Library of Doom! While searching for the intruder, the Librarian is struck down by a flying metal book. When he awakes, a shadowy figure stands above him. It is the Librarian's enemy, the Eraser. He has chained the Librarian to a huge golden book. If the Librarian can't escape, all the world's books could be destroyed.

Michael Dahl is the prolific author of the bestselling Goodnight, Baseball picture book and more than 200 other books for children and young adults. He has won the Association of Educational Publishers Distinguished Achievement Award three times for his nonfiction, a Teachers' Choice Award from Learning Magazine, and a Seal of Excellence from the Creative Child Awards. Dahl currently lives in Minnesota.