The Lucky Lottery (A to Z Mysteries #12)

Dink and his pals Josh and Ruth Rose solve mysteries in the fun and wacky new series for the Stepping Stone line. When Dink writes to his favorite mystery writer, Wallis Wallace, inviting him to visit Green Lawn, he's amazed when the author accepts. But when the big day arrives, Wallace is nowhere to be found. The police think he's just missed the plane--but Dink suspects foul play.