Sign Of The Green Dragon

Three plucky sleuths. A crumbling skeleton. A buried treasure. After six months in a new school, Sam's finally fitting in. He's the one kid with enough talent to hit the winning home run and bring in the baseball trophy back to Haggarty Elementary. But Sam's guardian is shipping him off to boarding school before that can happen. When his teammates, Joey and Roger, hear his bad news, they plot to hide him until the big game. Their secret cave is a perfect place until an earthquake shatters a wall and they discover a skeleton clutching a treasure map. They set off to trace the story of an old murder, stumble into a modern crime, and confront ancient Chinese dragons.