Siblings, Lucy and Andy, live with their friends, Margaret and Phil, in a cave. Andy has a crush on Margaret. He wants to go hunting, but when he sees what happens to the mammoth, he barfs two times. Andy is tired of eating mammoth, and once when he eats merky (dried mammoth), he comes down with a tooth problem. Andy's dad must pull his tooth out. One day when Lucy is making new clothes out of mammoth fur, Margaret upsets her. Lucy runs into the woods and meets two people, Claire and Chris, but she's frightened, so she runs back. The two clans meet, but will they get along?
This is a wonderful graphic novel! It was funny and adventurous. I liked when Danny, the little brother, lost his pants. I thought the drawing of that scene was hilarious! Jeffery Brown did a great job! Kids with a sense of humor will love this book!