A Fox Called Sorrow

In a Fox Called Sorrow, "the adventures continue for Little Fur, the half elf, half troll girl who heals animals in a magical grove in the heart of a big city. When Little Fur discovers that the Troll King is plotting against the earth spirit that binds all living things, she sets off on a new adventure with a set of unlikely companions: the faithful cat Ginger, a reluctant rat, a pair of ferrets, and a mysterious fox called Sorrow who believes their quest is doomed. Can someone as small as Little Fur prove him wrong? Absolutely! And how she does it is as rich a tale as we've come to expect from author Isobelle Carmody.
With black-and-white illustrations by the author throughout. "From the Hardcover edition.