A Chinese Biographical Dictionary/An-ch'i Shêng
7An-ch'i Shêng 安期生. A legendary being, said to inhabit the Isles of the Blest. He appears to have been a magician, and possessed the power of rendering himself visible or invisible at pleasure. The First Emperor sent an expedition under Hsü Shih to find him, and so did the Emperor Wu Ti of the Han dynasty, at the instigation of Li Shao-chün.