When a cardboard box is tipped on its side, the possibilities for scientific breakthrough are endless. In this wildly funny collection, Calvin decides that one of him simply is not enough to handle his chores and schoolwork, leading to the creation of the infamous Duplicator. Unfortunately, dealing with multiple mischievous versions of himself proves to be far more complicated than he anticipated, resulting in spectacular chaos. Alongside his loyal tiger Hobbes, Calvin continues to push the limits of reality. Readers will follow the daring Spaceman Spiff as he crash-lands on alien planets, ride shotgun with the gritty detective Tracer Bullet, and watch as Stupendous Man tries to outwit his mother. Time travel also becomes a regular hobby as the duo ventures back to the Jurassic age to run from dinosaurs. From philosophical debates to epic winter snowball fights, this volume guarantees laughter while exploring the incredible, messy, and hilarious thought process of an exceptionally creative kid.