A primeval Greek goddess, during the medieval age Nyx evolved into a witch who haunted the night. Goddess of Night, Nyx is the second being in one all-female Greek creation saga: first there was Chaos or the Void. Nyx was her daughter, her eldest child.
Chaos had more children including a son, Erebus, with whom Nyx united and conceived a daughter Hemera (Day). Nyx shares a house with daughter Hemera although they never see each other: when one somes home through the back door, the other leaves through the front.