Strange things happen under the Goblin Moon . . . Tidewaters rise, earthquakes rumble, and hobgoblins crawl out from their dens. A coffin drifts slowly down the river Lunn—in it, a spellbound sorcerer and his forbidden books of magic. A masked man disrupts the hideous rituals of the Knights of Mezztopholeez. And in the city of Thornburg, where elves, dwarves, and men all live together, not all men are quite as they seem.