First, though, you must know that all through this forest that is so dark and mysterious, with its strange animals and people, there run a great many rivers, which are used as highways not only by the Indians in their swift canoes but by many water beasts such as beaver, otter, mink and muskrats. And in the woods are countless trails, although perhaps you could never find them, on which the animals that live on land travel as though upon a road. All these creatures are continually on the move. They, as well as the humans in this land, are always busy. They have their living to find or make, and their young ones to take care of and feed. Some live alone, with no settled home, and others keep together in large numbers, having good-sized towns tunneled out beneath the ground, the different houses of each family joined, in groups, by passages. The very wisest among them, such as beaver, build themselves warm houses, store up water in which to swim, and put up large supplies of food for the winter months, working almost like men, often talking together when resting from their labors; and they all have, each in their own way, a great deal to attend to.