A detective story that encourages children to look closer at artifacts Do you know your dinosaurs? Dan does. He and his dog are digging down to see if they can find a Tyrannosaurus Rex who could swallow a boy in just two bites. But all Dan finds is a stone that looks like an odd sort of bone. But when his mom drags him to the museum he discovers that the awesome T-Rex skeleton has a tooth missing -- just like Dan! And the tooth gap looks just the right shape and size to fit the odd shaped stone!