Moominpappa at Sea (PB Fiction) Leave Moominvalley? Is it possible? Yes, even the Moomin family need a change of scenery sometimes, so theyre off to live in a lighthouse on a tiny island. Here they find space to grow, and to do things they couldnt in their comfortable, cluttered valley home. As they discover their new home, the family also discover surprising, and wonderfully funny, new things about themselves.