From the dust cover:
As a long, lazy summer on Duck Pond draws to a close, a cocky young water snake thirsts for excitement and adventure. Suddenly, a dangerous mission to rescue a hawk's prey offers the perfect opportunity. The eager snake, a wise old toad, and a determined little mouse leave their snug homes to head for places unknown. Thorough the great forrest, across a deep river, and all the way to the mighty ocean, these brave adventurers journey until weary, but far wiser, they return once more to their homes by the pond.