Cry of Chaos

Atticus Evergreen is the one and only son of the Greek Goddess, Artemis - Goddess of the Hunt and the moon. Being the only child of Artemis, he is hated. And by the goddess herself! Forced to live on his own, Atticus goes on countless, dangerous adventures to become stronger, and fights the evil thrown at him by his "loving" mother. But life is not so terrible for him; Atticus gets a kick out of teasing, and fighting, the daughter of Thanatos~

Tyler Jones is the daughter of the Greek god Thanatos. However, she is the offspring of his darker side - a side much darker than his Greek self and Roman self. Carrying out her father's tasks, she is the Grim Reaper. Constantly burdened by her own, troubling thoughts and her father's harsh jobs, Tyler's real face and appearance have not been seen. She is always hiding under her hood. But that doesn't stop her from kicking the ever living cr*p out of the son of Artemis every chance she gets.

Both demigods are extremely powerful and extremely dangerous. But, in order for the world to survive, the two must get along long enough to stop the awakening of Chaos, the most dangerous, and the very first, of the Protogenoi (or primeval gods). The gods themselves must keep the rising Protogenoi from overpowering them so it is up to Atticus and Tyler to save the world. But, if they aren't quick enough, even the universe will be destroyed, ceasing all life.

They're two demigods with one goal.