The second in the Blueskin series reveals the Lore of Cats. Blueskin meets Little Wolf, a terrier, and together they trek across Califonia to save the City of the Cats from thieves. They are helped by Wynimi, a Washoe child, make friends with three horses, discover things about themselves they never knew and find the fabled city hidden in a valley between the mountains. There they fight to preserve its secret and Blueskin learns thinks about himself than he never thought possible.