Mother Ghoul's Nursery Rhymes isn't like other books. It doesn't have an end. Literally. When people trip and tumble toward it, they don't hit the book's pages. They fall inside them, and they keep falling, forever stuck in a nonstop nightmare. Can the Librarian bring the book to a happy ending? Uncover hidden dangers and dark mysteries with SECRETS OF THE LIBRARY OF DOOM, a page-turning chapter book series from bestselling author Michael Dahl.