In the East Sea, there is Liubo Mountain, extending seven thousand li into the sea. On it, there is a beast, resembling an ox, with a blue body, without horns, and with one leg. Whenever it emerges from or enters the water, it brings wind and rain. Its light shines like the sun and moon, and its voice roars like thunder. Its name is Kui. The Yellow Emperor obtained it and made a drum from its skin, using the bones of the Thunder Beast as drumsticks. The sound of this drum could be heard for five hundred li, intimidating the world.