There's Treasure Everywhere by Bill Watterson ISBN 13: 9780836213126

In the world that Calvin and his tiger Hobbes share, treasures can be found in the most unlikely places, from the outer regions where Spaceman spiff travels to the rocks in the backyard--this curious duo roams their world in search of fortunes (and misfortunes!) to be experienced. Whether Calvin and Hobbes are blasting off on another interplanetary adventure or approaching warp speed on a downhill wagon ride, their capers are repartee consistently charm and refresh their readers' days. On his own, Calvin is prey to the insidious killer bicycle, is the arbiter of the dad poll, is the creator of a legion of snowmen who provide an incisive social commentary, and Hobbes is always there as the perfect companion. Watterson's talent is evidenced by the range of thought provoking emotions the strip encompasses in addition to the laughs it induces: the loyalty and friendship between Calvin and Hobbes , the challenge of being a patient parents, and the sardonic viewpoint of a cynical six-year-old ("I'm a 21st-century kid trapped in a 19th-century family," laments Calvin) combine to make this one of the best-loved strips in cartoon history.