Little Fur discovers that her friend, the cat Ginger, is in terrible danger. Advised by the wise Sett Owl to seek out the Mystery of Wolves, Little Fur takes as her guide an old wolf whom she frees from the zoo. Greysong leads her high into the frozen mountains where she must face the deadly peril that lies at the heart of the Mystery of Wolves. The safety of Little Fur, and Ginger, will depend upon what she can learn about her own mysterious past...