Chaos

Chaos (also known as Khaos or "the Gap") is the initial rudimentary mass of being, as explained by Ovid in his Metamorphoses. From "him", emerged the Protogenoi. Besides being a deity, Chaos is a shapeless void below even the depths of Tartarus, the realm embodied by one of his sons. Once someone enters Chaos, he/she becomes nothing and is dissolved by the void. This is where faded gods reside in eternal sleep.