The magic tree house transports Jack and Annie on a mission to the Ice Age where they encounter Cro-Magnons, cave bears, sabertooth tigers, and woolly mammoths.

Dusk, the world's first bat, must lead his colony to safety in a time of changing species.

Manny and Ellie's friends, including two possums, a sloth, and a sabertooth tiger, anxiously await the birth of the mammoth's couple's baby.

Connecticut middle-schooler Jake and his older sister Kady are transported by a Mayan artifact to a strange world inhabited by a mix of people from long-lost civilizations who are threatened by prehistoric creatures and an evil alchemist, the Skull King.

Geronimo Stilton's ancestor, Geronimo Stiltonoot, investigates a witness's claim of a moving mountain of ice.

When Manny and Ellie celebrate their anniversary, they leave Sid, Diego, Crash, and Eddie in charge of taking care of Peach, and they fight to prove which one of them is Peach's favorite caregiver.

A young Tyrannosaurus rex with very poor eyesight loses his eyeglasses, resulting in chaos for himself and the creatures around him.

"Geronimo Stilton's ancient ancestor Geronimo Stiltonoot is back in another prehistoric adventure! It's the night of the big Cavemouse Idol competition, but Geronimo Stiltonoot isn't there. He has a cold, and goes to bed early. So when it's discovered that the contest's valuable grand prize has been stolen, Geronimo is the main suspect! He must prove his innocence ... or he'll end up in enormouse trouble!"--

Geronimo Stiltonoot and his family save a young dinosaur from the river. The dinosaur and Benjamin quickly become good friends, but the dino turns out to have a tremendous talent for mischief. Can Geronimo get him back to his herd before he causes a megalithic disaster?

A little girl named Stone lives with her father during prehistoric times where mastodons and ferocious beasts abound. She longs to be as strong as her father. But when he becomes ill, she must journey deep into the wilderness to find a cure. Stone will need bravery for the harrowing journey, but she will need kindness most of all. A tender tale about the bond between a father and daughter, Strong as Stone illustrates that the power of love and compassion...