In Sumerian and Akkadian mythology, Anzû is a divine storm-bird and the personification of the southern wind and the thunder clouds.[4] This demon—half man and half bird—stole the "Tablet of Destinies" from Enlil and hid them on a mountaintop. Anu ordered the other gods to retrieve the tablet, even though they all feared the demon. According to one text, Marduk killed the bird; in another, it died through the arrows of the god Ninurta.[5]