One spring day, the little Water Sprite is born in a house of reeds at the bottom of a mill pond. Duckweed soup, pickled water fleas, and other dainties are served to celebrate. The little Water Sprite grows up quickly, and soon he is bored of gazing out the window at the newts and fish swimming by. There is a whole new world to see outside his living room, and the little Water Sprite is determined to explore it In the pond he makes friends with Cyprian the carp and encounters the fearsome nine-eyed lamprey, but his most thrilling adventures await him on dry land.