At which point Isis reveals her true form and yells “HA! YOU PLAYED YOURSELF! HOW CAN SOMEONE TAKE A MAN’S PROPERTY WHEN THE SON LIVES INDEED”
The other gods murmer in agreement that Seth had, indeed, played himself and plans were made for the coronation of Horus. Seth was having none of it.
Not about to let Horus be crowned, Seth sets forth a challenge. “Let’s turn ourselves into hippos and duke it out in the river!” he says. “Best god gets the lot, eh?”. Horus takes this on gladly, but Isis is afraid that Seth will kill him.
The battle went on for many days, with the advantage going between the two until Isis could no longer bear to watch and made a harpoon. She threw it into the water… and hit Horus.
“Mother! You fucking stabbed ME! Let go”
Isis pulled out the harpoon and thew it again, actually stabbing Seth this time. Good job, Isis. Best mum award. It pierced Seth so hard that he emerged from the water, this losing the battle, and he pleaded with her to let him go. How could she do this to him? She is his sister? Why must she always fight him like this? Isis feels a bit bad about stabbing her own brother, and pulls out the harpoon.
Horus is so mad about this, and also being stabbed, that he leapt out of the river and cut her head off in one stroke, before walking off in a sulk (she’s fine, don’t worry, they put it back on. Gods, y’know?)
Seth found Horus sulking, and, catching him by surprise, plucked out both of his eyes. When Seth returned to the rest of the gods, he told them he couldn’t find Horus anywhere, and so the rest of them kept looking. Eventually Hathor found Horus, blinded, and performed healing magic to return his sight.
She went back to the encampment and grassed Seth up. “He’s been lying to you! He found Horus, all right, and took out his eyes! I just had to heal him myself!