A time gate...
A team of teen scientists...
A desperate fight to survive....
In book 2 of Dawn of Mammals, Hannah and the kids are swept back to the Paleocene, where giant avian dinosaurs still reign as the apex predators. In a jungle world of sweltering heat, the time travelers must learn new skills to survive the swamp creatures and the dreaded Terror Crane, a half-ton bird that could snatch any one of them up with its deadly beak.