The Stone Cold Age (Lucy and Andy Neanderthal, Volume 2)

Every day is a snow day for Lucy & Andy! But life in the Ice Age isn't all fun and games. These Neanderthal siblings are back to their paleo pranks, and they have to put up with more than just each other--the cave is feeling awfully cramped since the humans moved in. It's the Ice Age, and legroom comes at a real premium!