Revenge Quotes in The Red Pyramid

How we cite our quotes: (Chapter.Paragraph)

Quote #10

"Set had been an important lieutenant to Ra, but he could not bear to see his brother Osiris become king. This made Set and Osiris enemies, and here we are five millennia later, still fighting that way, all because of Isis." (23.150)

What started this pile of awful revenge so long ago? It was Isis's hunger for power, according to Thoth. But it could also have been the jealousy between brothers Set and Osiris, or the fact that nobody ever forgives or forgets in this pantheon.