Khun is a "haunted ruins" on the northern shore of the southern continent near the Sea of Torments. It is east of Beryl, the most ancient of the Jewel Cities. Khun is mentioned just once, in The Silver Spike.
Khun is the sixth named location in the long, overland odyssey traveled by the demon called Toadkiller Dog, who was following the trail of his new enemy, the Limper. After swimming the River Bigotes and the Hyclades, and traversing the Rani Poor desert, the burial mounds of Barbara, and the forgotten highways of Laba Larada, Toadkiller Dog passed through Khun. He then continued eastward, crossing, in order: the lifeless landscapes of the Canyons of the Undead; the ruins of the temple city of Marsha the Devastator; the populated province of Karsus; the Plain of Dano-Patha; the Mountains of Sinjian; and finally, the Straits of Angine and onward into the northern continent, to the Tower at Charm.