Rodent Pierre—a wistful fisherman—is secretly in love with rabbit Catherine, an artistic ballet teacher whose studio he passes each morning. For her part, the humble Catherine has fallen for a mysterious stranger who returns to the harbor each night in his boat. How these star-crossed lovers hook up is told through a combination of a simple, direct text splashed with humor and imaginative watercolor paintings that are accomplished and varied in their composition. The pictures are particularly buoyant, with precise renderings of the whiskered Pierre and his working vessel set against luminous sky-and-seascapes in choice colors. Mathers is also skilled at showing Pierre’s secret longing with misty images of the hare dancing across the waves and through the clouds. An endearingly elegant pick for Valentine’s Day, featuring well-matched art and text. (Picture book. 5-8)