Publisher's Synopsis
Winner of: Foreword Reviews Book of the Year Award PubWest Book Design Award Follow Ari, Jenna, and Caleb as they embark on their newest time travel adventure in Terra Tempo: The Four Corners of Time . When Ari discovers a time map of the Colorado Plateau, he and the twins find themselves on a fast-paced journey from Earth's underwater beginnings to the steamy jungles and huge creatures of the creepy Cretaceous. But this time, there is more at stake than just survival; this time, they are not alone. Join the intrepid trio as they venture into prehistoric life on Earth-they must find ways to protect their map and all of the precious resources that the map reveals, or the rest is prehistory!
