Nate the Great and the Hungry Book Club

Who's ruining Rosamond's books?
Rosamond has started a book club called Rosamond's Ready Readers. But she claims there's an evil page monster on the loose. This monster has ripped and ruined a page of the cookbook Rosamond uses to make treats for the club.
Nate the Great and his dog, Sludge, go to the next meeting of the book club . . . as undercover detectives. All the members are there. They are reading a book when one of Rosamond's Ready Readers discovers that a page is missing. Has the evil page monster struck again?
Nate and Sludge know they have a real case. Their search for evidence takes them to Rosamond's kitchen and to a school book sale where a librarian gives them important clues. Can the pancake-eating detective and his bonemunching partner solve their hungriest case yet?