Lighthouse Family - The Storm by Cynthia Rylant

HC

Life with only the sea can be lonely. Just ask Pandora and Seabold. They've lived most of their lives with the sea -- Pandora in a lighthouse and Seabold on a boat -- and they're each quite used to being alone. Or they were.
But one day, the sea did something extraordinary: It brought Pandora and Seabold together And even better, the sea gave them the ingredients for an adventure that neither of them had considered before-an adventure called "family."