Search for the Silver Swamp Monster (Paperback)

Sixth grader Griffin Ghostley has a lot on his mind today. One intriguing map. Three head-scratching clues. Oh, and a water-dripping, vine-wrapped swamp monster out to defeat him. Can Griffin solve the three clues in time to help him unlock a mysterious vault in the abandoned Kensington Circle Corporation building that is the key to everything? With the help of Mindy Mayhew, his friend and classmate, and his three canine companions, he'll certainly try. But first they must follow the map to an old barn, a pumpkin patch and a graveyard if they plan to succeed-and all under a full moon on Halloween night!