"Sons of Earth and Heaven," said Zeus to the hundred-armed giants, "a long time now have the Dwellers on Olympus been striving with the Titan gods. Do you lend your unconquerable might to the gods and help them to overthrow the Titans."
Cottus, the eldest of the giants, answered, "Divine One, through your devising we are come back again from the murky gloom of the mid Earth and we have escaped from the hard bonds that Cronos laid upon us. Our minds are fixed to aid you in the war against the Titan gods."
So the hundred-armed giants said, and thereupon Zeus went and he gathered around him all who were born of Cronos and Rhea. Cronos himself hid from Zeus. Then the giants, with their fifty heads growing from their shoulders and their hundred hands, went forth against the Titan gods. The boundless sea rang terribly and the earth crashed loudly; wide Heaven was shaken and groaned, and high Olympus reeled from its foundation. Holding huge rocks in their hands the giants attacked the Titan gods.
Then Zeus entered the war. He hurled the lightning; the bolts flew thick and fast from his strong hand, with thunder and lightning and flame. The earth crashed around in burning, the forests crackled with fire, the ocean seethed. And hot flames wrapped the earth-born Titans all around. Three hundred rocks, one upon another, did Cottus, Briareus, and Gyes hurl upon the Titans. And when their ranks were broken the giants seized upon them and held them for Zeus.
But some of the Titan gods, seeing that the strife for them was vain, went over to the side of Zeus. These Zeus became friendly with. But the other Titans he bound in chains and he hurled them down to Tartarus.
As far as Earth is from Heaven so is Tartarus from Earth. A brazen anvil falling down from Heaven to Earth nine days and nine nights would reach the earth upon the tenth day. And again, a brazen anvil falling from Earth nine nights and nine days would reach Tartarus upon the tenth night. Around Tartarus runs a fence of bronze and Night spreads in a triple line all about it, as a necklace circles the neck. There Zeus imprisoned the Titan gods who had fought against him; they are hidden in the misty gloom, in a dank place, at the ends of the Earth. And they may not go out, for Poseidon fixed gates of bronze upon their prison, and a wall runs all round it. There Cottus, Briareus, and Gyes stay, guarding them.
And there, too, is the home of Night. Night and Day meet each other at that place, as they pass a threshold of bronze. They draw near and they greet one another, but the house never holds them both together, for while one is about to go down into the house, the other is leaving through the door. One holds Light in her hand and the other holds in her arms Sleep.
There the children of dark Night have their dwellings--Sleep, and Death, his brother. The sun never shines upon these two. Sleep may roam over the wide earth, and come upon the sea, and he is kindly to men. But Death is not kindly, and whoever he seizes upon, him he holds fast.
There, too, stands the hall of the lord of the Underworld, Aidoneus, the brother of Zeus. Zeus gave him the Underworld to be his dominion when he shared amongst the Olympians the world that Cronos had ruled over. A fearful hound guards the hall of Aidoneus: Cerberus he is called; he has three heads. On those who go within that hall Cerberus fawns, but on those who would come out of it he springs and would devour them.
Not all the Titans did Zeus send down to Tartarus. Those of them who had wisdom joined him, and by their wisdom Zeus was able to overcome Cronos. Then Cronos went to live with the friendly Titan gods, while Zeus reigned over Olympus, becoming the ruler of gods and men.
So Orpheus sang, Orpheus who knew the ways and the histories of the gods.