-Paul EhlersThis book was Awesome! This book was very cool because of the two very different species battling on Earth.The way the Animorphs didn't realize that they were in the time of the Dinosaurs until they actually saw or was attacked by the Dinosaurs. The way Rachel and Tobias were attacked by the Nesk that could take on shapes by looking at them. The way the Mercora used force fields for everything, and the way they couldn't morph Dinosaurs after they got back to there own time. That was awesome! That was a very life threatening and suspence filled story. The Animorphs couldn't understand everything that was happening and held-up there share of the fight. It was a great book and I can't wait for the third to come out!