"In a prehistoric era, Tib, a boy who is made fun of for his birthmark and his clumsiness, makes friends with Tumtum, a big, playful red dinosaur only he ever sees. When Tumtum saves the tribe's kids from a pack of hungry wolves, the shaman decides it's time to welcome a dinosaur into the tribe"-- Provided by publisher.

Kip the Cave Boy and Paleowolf each face hunger and danger on a journey in Paleolithic times, and when they decide to join forces and help one another, Paleowolf becomes the first dog.

"It's been 925 summers since the Jemen introduced zyme, a bioluminescent algae, into the world's ocean and unwittingly triggered an Ice Age that has consumed most of the planet. All but a handful of Jemen flew to the stars, but before they left, they recreated several extinct species that had thrived in the last Ice Age. After almost a thousand summers, the archaic hominins that struggle along the edges of massive glaciers are dwindling. All they...

After Shaman Faboo goes missing, the village panics and elects Dave as their new leader. If Dave can't find Shaman Faboo and bring him back, he'll be doomed to a life of boredom and public service.

While working to secure her future with Kol, Mya finds herself facing an impossible choice when she learns her brother has arranged an unfavorable marriage.

Teen members of a group of archaic humans, Lynx and Quiller, flee the increasing coldness and monstrous predators for a new land, where they meet a strange old man who tells them how to save the world.

When a young American woman, who works at a London auction house, receives a 17,000-year-old fragment of a cave painting from a British soldier, she sets out to find the fragment's true origins.

With school out Oona and her brother Bonk are busy helping their father gather food, but Oona's pet Stegosaurus is something of a cave wrecker when left at home all day, so the children start Camp Woggle where all the local pets can amuse themselves during the day--but Mauro's pet T-Rex is a problem because he has a tendency want to eat the other campers.