Saber Tooth by Lou Cadle

A time gate…
A team of scientists…
A desperate fight to survive….

A rock slide at a fossil site uncovers a portal through time. Park Ranger Hannah and, teen fossil hunters, and their teacher are caught in it and whisked back to an era when giant predator mammals roamed the earth. Before they can find their way home, they must first survive the Dawn of Mammals.

Category: Science Fiction – Time Travel