Gordon R. Dickson has entertained readers for over two decades with his tales of Jim Eckert. Now the Dragon Knight must confront the three disas-ters that lie in wait for any visitor to the English Middle Ages: war, plague, and Plantagenets. The plague is caused by a covert invasion of shapechanging goblins who seek to take over the world. Meanwhile, Eckerts castle is invaded by Plantagenets: Edward III, his son Edward The Black Prince, and Joan, the Fair Maid of Kent. Against the background of a full-scale human-versus-goblin war, these worthies move in a swirl of intrigue and dynastic tension.