Yin Dog

At the twentieth round the right light is a green-white shadow, like the moon in water or a flower in fog. It is the smallest of three lights, standing for around a hundred Yin dogs. ^{ch. 349}

Yin dogs have no physical bodies. Each is a lump of Yin energy in a dog shape, floating in the air. Ordinary attacks cannot kill them. They pass through mountain rock, phase through the ground, and hide under water. Fang Yuan rules the group out because his dogs cannot kill them. ^{ch. 349}

At a later fog, a certain number of Yin dogs form one of three light shadows. Killing them would give Fang Yuan a two tasks at once Gu. ^{ch. 351}

Ku Mo says he failed his last run because of the Yin dogs. He says ordinary dogs cannot hit a Yin dog’s formless body. The jade eye dog king he recruits carries a wild Gu worm that is effective against Yin dogs. ^{ch. 380}

The land spirit tells Bai Ning Bing to restrain corpse dogs with Yin dogs. It describes corpse dogs as purple all over, with slightly rotten skin. ^{ch. 381}

Over ninety thousand dogs stand on the mound. Some in the crowd count over five thousand Yin dogs. ^{ch. 393}