From the publisher: In the cloying dark of a dwarven hold long lost to fang and claw, two degenerate tribes of furtive kobolds fight a brutal war of deadly traps and sudden ambush. Driven relentlessly on by their draconic masters, only the utter annihilation of one tribe will end this decades-long rivalry. Kobolds of the Fallen Halls includes: Eight new feats. Four new spells. Two complete dragon hoards. Twenty stat blocks (ranging from CR ¼ - 9). Full details of Antharuthux, a male juvenile black dragon. Full details of Dereghwyr, a female juvenile green dragon. Inspired by the Robert E. Howard’s short story Red Nails.