Celebrate 20 years of A to Z Mysteries! No foolin'! It's the first of April in Green Lawn! Mr. Paskey, owner of the Book Nook, plays an April Fools' Day prank on Dink, Josh, and Ruth Rose. They hatch a plan to get back at him, but then the bookstore is robbedno joke! Can the kids track down the crook? Or will this April Fools' be an April fail? The alphabet may be over, but the mysteries continue in this ninth A to Z Mysteries Super Edition, featuring a 26-letter secret message hidden in the illustrations.