You've just been transported back in time. Exotic plants tower above your head, while giant rat-like creatures scuttle around you. What concerns you most, however, are the meat-eating dinosaurs that are the size of a house! Do you think you have what it takes to survive the Cretaceous Period? Turn the pages to find out!

The reader's choices determine whether three friends will survive after being mysteriously transported back in time to when huge insects swarmed the skies and fearsome dinosaurs ruled.

What would happen if you went back in time? Imagine stepping into the Stone Age and meeting some Neanderthals. Would it be a peaceful encounter or a Stone-Age smackdown? What if you went back to when dinosaurs roamed? Would you be a tasty snack for a T-Rex or the first human to tame fire? Remember, in a time before recorded history, just about everything could kill you. You Choose Books offer an exciting, immersive nonfiction learning experience where...