Og's Great Adventure (Og's Great Adventure Series Book 1)

Run through a prehistoric jungle with Og the Curious Caveboy as he sets out in search of the colorful arch of wonderment. Og discovers a whimsical rainbow after a terrible storm and is determined to find in and bring it back to his family for all to enjoy. The little caveboy knows he's not supposed to trek out into the jungle alone, but it's not that far, He can can bring it back before anyone even knows he's gone.