Two friends discover a secret entrance to a prehistoric world. A new series for dino-loving adventurers! Tom and Jamie can"t believe their luck when they find a secret entrance to a prehistoric world filled with dinosaurs! They vow to go back and have a new adventure every day. This time, it"s a rescue mission: A quetzalcoatlus has dino-napped their friend the wannanosaurus. With a wingspan of 40 feet, the quetzalcoatlus is a high flier--and a fast one. Tracking Wanna won"t be easy, but Tom and Jamie have a plan . . .