Are you ready for the Ice Age? Travel back in time to the days of early man and identify a mysterious animal that our ancestors painted on a cave wall long befo

The reader journeys back in time to 35,000 B.C. to find a mysterious unicorn painting and faces untold perils including a group of Cro-Magnon hunters and prehis

Thirteen-year-old Quest (Q) isn't sure he's ready for a new family. For a long time it's just been him and his mom, Blaze. But everything changes when Blaze fal

A riveting, urgent account of the explorers and scientists racing to understand the rapidly melting ice sheet in Greenland, a dramatic harbinger of climate chan