The Hafling Saga continues:

In Book Three, on a mission to find missing Trolls, Harrel, the Hafling Ranger, is captured by an evil wizard and caged in an impenetrable castle. His Sorceress companion, Vallezza, must find a way to get inside. She changes a hillcat and a barncat into CatDragons that fly into the castle and free Harrel. He has uncovered a diabolical plot to steal magic from the Magicals and the stone bridges only the Trolls can repair, and use that magic, wickedly, to divide and conquer the Kingdom. Their quest for the Trolls faces many obstacles: evil wizards, poisonous black birds, wooly mammoths, bears, and wolves. Two humans from Elsewhere lend a hand evacuating isolated villagers, fighting ogres, and training Dragon Riders in this epic saga of loss and survival.