In their magic treehouse, Jack and Annie are again transported to King Arthur's realm, where invisible beings, giant ravens, and mistaken magic spells have a duke's castle in an uproar on Halloween night.
In this adventure, Jamie and Tess find themselves caught in a terrible storm. During the chaos, a stegosaurus egg is swept away downriver. It's up to Jamie and Tess to recover the egg and return it to its mother before it's too late!--
"In Dino World, Jamie and Tess come across a diplodocus with a splinter in its mouth. Before they can pull it out, the diplodocus panics and flees. The kids are determined to help the giant herbivore...but they'll have to find it first!"--
Catapulted through time to the prehistoric era, the DATA Set find their efforts to avoid contaminating history challenged by flying pterosaurs, stomping stegosaurus stampedes and a sharp-toothed T-rex.