Bella and the Voyaging House — Meg McKinlay

Bella's house likes to travel, setting sail across the ocean while everyone sleeps. Bella's parents don't mind as long as the house is home by daylight. One night, Bella has a wonderful idea for her grandfather's birthday. She wants to find a figurine he made of her grandmother, which was lost overboard in an accident. Bella and the house go in search of it, but things don't quite go according to plan...