From the Publisher: This unforgettable odyssey into the distant past carries us back to the awesome mysteries of the exotic, primeval world of The Clan of the Cave Bear, and to Ayla, now grown into a beautiful and courageous young woman. Cruelly cast out by the new leader of the ancient Clan that adopted her as a child, Ayla leaves those she loves behind and travels alone through a stark, open land filled with dangerous animals but few people, searching...

After their epic journey across Europe, Ayla and Jondalar have reached his home, the Ninth Cave of the Zelandonii, the old stone age settlement in the region known today as southwest France. Jondalar's family greet him warmly, but they are initially wary of the beautiful young woman he has brought back, with her strange accent and her tame wolf and horses.

Still trying to stop the evil Dr. Kron-Tox, Andrew, his cousin Judy, Thudd the robot, and Beeper find Uncle Al in the Ice Age, where they encounter prehistoric animals, birds, and people.

Young siblings Mara and Dann are abducted from their home in the middle of the new Ice Age and left by themselves to survive the cold weather and bands of violent Rock People. The children finally catch up with the human migration to a warmer climate, but then must travel through cities and countries devastated by poverty and disease.

Woolly mammoth siblings Oscar and Arabella enjoy being at Mammoth Academy, but Oscar is accused of stealing oranges and when he follows some mysterious tracks to find the real thief, he discovers humans living nearby.

"Tamiko the dinosaur fanatic and Ollie the rainforest expert travel back in time to the Ice Age to lead a group of woolly mammoths away from a dangerous avalanche."-- Provided by publisher.

The Earth is in the grip of a new Ice Age, and when twelve-year-old Eleanor's scientist mother disappears in the Arctic, Eleanor sets off on a dangerous journey to find her--and uncovers a mystery, a crime, and evidence that Earth has been visited by extraterrestrials.