When a T-Mex threatens the pack, it's El Skippito, the great sword fighter, to the rescue. With yips and yowls, he drives the big baddie away, so all the dino-dudes can rattle their bones another day. This fourth entry in a series that "Kirkus Reviews" called ?ay caramba, mucho fun, ? will win even more fans for the Siamese cat with oversize ears and an imagination to match.