this story is about a dog called Buck, who is taken to live in the Northland -the far northwest of Canada. In the Northland, there are mountains, rivers, lakes and forests. You can travel for hours without seeing people or houses, and there are many wild animals, such as bears, moose, chipmunks, squirrels and wolves.Winters there are very cold and very long, and in some parts the ground is frozen all year. Because this part of North America is very near the Arctic Circle, the days stay dark in the middle of winter, and in summer the light lasts all night.