Nyx (Greek: Νύξ, "Night") – Roman (in Latin): Nox – is the Greek goddess (or personification) of the night. A shadowy figure, Nyx stood at or near the beginning of creation, and was the mother of other personified deities such as Hypnos (Sleep) and Thanatos(Death). Her appearances are sparse in surviving mythology, but reveal her as a figure of such exceptional power and beauty, that she is feared by Zeus himself. She is found in the shadows of the world and only ever seen in glimpses.
For the sixth labor, Eurystheus ordered Hercules to clean up King Augeas' stables. Hercules knew this job would mean getting dirty and smelly, but sometimes even a hero has to do these things. Then Eurystheus made Hercules' task even harder: he had to clean up after the cattle of Augeas in a single day