Nate the Great and the Hungry Book Club by Marjorie Weinman Sharmat (author) (US edition)

Who’s ruining Rosamond’s books? Rosamond has started a book club called Rosamond’s Ready Readers. But she says an evil page monster is on the loose, gobbling up pages! This monster has ripped and ruined a page of the cookbook she uses to make treats for the club. Can Nate the Great solve his hungriest case yet? Along with his dog, Sludge, Nate goes to the next book club meeting as an undercover detective. But when one reader discovers that a page is missing, has the monster struck again? The search for evidence takes our young sleuth to Rosamond’s kitchen, and to a school book sale where a librarian holds some vital clues…