此书描述了三寸教授经历的奇遇与历险。他好心变成小狗充当一个男孩的伙伴;破天荒第一次跟小狗争奶吃;被作家捏到尾巴变成小猴子,落到了小偷手里;被小猫赶到了老鼠洞里,幸得一只好心的小老鼠相救;又掉进水里变成了小鱼;还改装了飞机,追踪外星生物…… This book describes the adventures and adventures experienced by Professor San inch. He kindly turned into a puppy to act as a boy’s partner; the first time in a row to compete with the dog to eat milk; by the writer pinch the tail into a small monkey, fell into the hands of thieves; kittens rushed to the mouse hole, fortunate A kind little mouse rescued; fell into the water into a small fish; Also modified aircraft, tracking alien life ... ...