Desolate beast blood

In Starry Sky grotto-heaven, Star Lord Wan Xiang tells Immortal Monkey King Shi Lei that the eighth star hall appears only after enough desolate beasts are killed and their blood seeps into the ground. They have already killed six desolate beasts, and he judges that one more may be enough. ^{ch. 716}

Fang Yuan adds the blood of desolate beasts and Gu Immortals to a blood lake in Mini Eastern Sea and places blood asset Immortal Gu in it to recover after heavy damage. ^{ch. 1167}

The same blood lake later holds a large amount of desolate beast blood and Gu Immortal blood after blood asset Immortal Gu has fully recovered. Fang Yuan keeps the lake even though the Gu no longer needs it. ^{ch. 1291}

The water of that blood lake has collected a lot of desolate beast and Gu Immortal blood from earlier repair work on blood asset Immortal Gu. ^{ch. 1461}

While refining with Spring Autumn Cicada, Fang Yuan kills a living desolate beast and draws its blood into a golden light pillar, drying the corpse as the blood is absorbed. He then kills seven desolate beasts in total so the pillar turns fully red. Sixth Hair recognizes the method as the seven kill blood path Gu refinement method from Lang Ya Sect, which Fang Yuan has modified for this use. ^{ch. 1479}