Jack London's "The Call of the Wild" has been broken down into several books. In this series, there will be a book for every chapter. This is Weekly #5, which is the 5th chapter(The Toil of Trace and Trail) of The Call of the Wild. Be sure to look for your favorite chapters from this classic story. "The Call of the Wild," set in the late 1800s, takes the reader on an interesting adventure during the 1890s Klondike Gold Rush. Enjoy London's imagination as you discover what life was like for an in-demand dog during those times and how this dog responded to the challenges laid before him.