Mole thought his happiness was complete when, as he meandered aimlessly along, suddenly he stood by the edge of a full-fed river. Never in his life had he seen a river before--this sleek, sinuous, full-bodied animal, chasing and chuckling, gripping things with a gurgle and leaving them with a laugh, to fling itself on fresh playmates that shook themselves free, and were caught and held again." Such is the cautious, agreeable Mole's first introduction to the river and the Life Adventurous. Emerging from his home at Mole End one spring, his whole world changes when he hooks up with the good-natured, boat-loving Water Rat, the boastful Toad of Toad Hall, the society- hating Badger who lives in the frightening Wild Wood, and countless other mostly well-meaning creatures.