Amazon.com description: Product Description: In simultaneous hardcover and paperback editions, the first book in the Clubhouse Mysteries. Ziggy and his friends Rico, Rashawn, and Jerome call themselves The Black Dinosaurs, and share exciting adventures. In The Buried Bones Mystery, the boys build a clubhouse in Ziggy's backyard, where they uncover a box of bones while digging to bury their secret treasures. But when the boys try to hide their treasures, they're swept up in a mystery more intriguing -- and scary -- than anything they could have imagined. Who could have buried a box of bones behind their clubhouse?