Beneath the waves he would swim with his powerful fishtail, but when he left the sea, he walked on two legs like any other man. Such is the life of Nicholas the merman, who lives on land and needs only to touch the sea once a day. Nicholas loves Margaret, the fisherman's daughter. And Margaret loves him. But Margaret's father, Marius, has forbidden the two to speak. Still, their love runs as deep as the ocean. And with that love, they brave every hardship - defying Margaret's father, outwitting the jealous sea-folk, even cheating death itself - to be together. Filled with poetry and enchantment, Robert San Souci's moving story is brought to life through David Shannon's luminous illustrations.