Title: Polar bear puzzle
Description: Riley, Uncle Max, Aunt Martha, and Cousin Alice meet in northern Canada, where they study and help polar bears that are wandering through towns while waiting for Hudson Bay to freeze over again so that they can hunt for seals.
Subjects: Bears, Fiction, Polar bear, Zoology, Human-animal relationships, Animals, Juvenile fiction, Children's fiction, Adventure and adventurers, fiction, Bears, fiction, Polar regions, fiction
Places: Canada, Polar regions