From the author of the New York Times bestselling Jedi Academy books comes book three in the laugh-out-loud graphic novel series about cave kid siblings Lucy and Andy. Fans of Big Nate, Diary of a Wimpy Kid, and The Terrible Two won't want to miss it!

"Lucy & Andy are Stone Age rock stars! I loved this book!" -LINCOLN PEIRCE, author of the BIG NATE series

Lucy and Andy are a sister and brother who get into trouble much like any sister and brother. Only difference? Lucy and Andy live in the Stone Age! Discover their laugh-out-loud adventures as the Paleo pair take on a wandering baby sibling, bossy teens, cave paintings, and a mammoth hunt. But what will happen when they encounter a group of humans?