Kerrul - the Lord of War, father of mankind.

Some say that when Arah - Lady of the darkest night joined her peers in the realm of the gods, her raw strength and subdued wisdom appealed to Kielat - Lifegiver, who courted her showing her some of his most precious artifacts, examples of fine craftmanship and complex machinery.
Of all the things he showed her, it is said Arah took no notice, her eye attracted by an enormous cauldron, black as the night she embodied, in which a sea of fire and molten stone circled in a vast maelstrom of pure heat. "Gift me that cauldron" she told him, and he aquiesced.

For two seasons, Arah lay with Kielat, until during her time of greatest power, when the night is longest, she left him, never to return to his abode, which remained shrouded in magical darkness for several years, keeping Kielat in an unnatural slumber.
When he finally woke, the god of life searched for Arah, and when he finally found her, he discovered she was with child.
The goddess plunged her hand in the depth of the Eternal Cauldron, pulling from it a rod made of pure smoldering lava. She struck Kielat, two times.
"What knows mighty Kielat of the burdens of life, he who has made it and set it into the world, never to look at it again? Return to your abode, and leave me be. Let me be Mother once more, for this child is mine."

In silence, Kielat left the great cave where Arah resided, for he knew the truth in her words. He was the perennial craftsman, but he would not concern himself with what occurred to the product of his labour; its mere existence would be, had always been, enough.
Satisfied, he left Arah to her own devices, and so it was, in due time, that Kerrul came to be.
At birth he was lain at the center of the Great Cauldron, his body shaped and hardened by the smoldering lava.
Gifted with some of his father's keen mind and creative spirit, Kerrul observed the many Orchish matrons that served and pampered his mother as she regained her strength. Like she had done before him, he started toying with the lava he was lain onto, and soon he produced a small host of fiery creatures, that he would set up against one another, in mock battles.
As he outgrew the Cauldron, he brought with him the creatures of molten fire, who emulated the Orcs around them and served his bidding.
In time, Arah cast him out of the cave, for Kerrul to find his own way.
Left unchecked, the new god roamed the land, his servants consuming everything in flames.
Though his mother rejoiced his company as she was out during the night and he brightened her domain, the other gods were concerned, and addressed Kielat, who took responsibility for his infant son's actions.
They met on the planes and Kerrul tried to wrestle his father, whom he did not know to be such, and would have defeated him were the other not the embodiment of life itself.
The strongest of Kielat's chains was fed through mighty irons that clasped around Kerrul's neck and wrists.
Bound by magic, the young god's fury subsided enough for his father's words to filter through his rage.
Kielat estinguished the fire that animated Kerrul's servants, who fell where they were standing, lifeless.

"Hear me, son of mine, child of the Night. You bring war to this world of ours. I see that it is in your nature and your domain to do so. I shall however not allow the destruction of all that is dear to us all to occur because of your wanton nature. You bear the chain of Kielat to remind yourself of this: life is sacred to me and to all gods. It is not eternal, but must nevertheless be preserved and a balance must be struck. I shall give life, however short, to these creatures of yours and you shall watch over them and see them flourish.
Do good by them, and you shall join your peers in full. Fail them, and the chain you bear shall be not a burden but a prison."
"So it must be." Chimed in Arah, her voice echoing through all of creation.

Kerrul nodded in silent agreement, and saw his servants rise from the ground, no more shrouded in and made of flames, but of flesh and blood and skin in many hues.
Humans, he called them, and set about to make of them one of the dominant races of Andúnë.
Over time, Kerrul, still drawn to war and feats of a caotic nature, grew in age and wisdom and was finally admitted in the circle of the gods. He still wears the chain his father imposed on him, but it is not known if it still holds power over him.