User blog comment:ChazmanianDevil/Lay of the Titans, Book 2, The Early Days of Midgard/@comment-25356210-20151212230116/@comment-27097330-20151212233448

That's because what you call "Percy Jackson lore," is nothing more than Greek Mythology. I said this would take influence from all mythologies did I not? Everything used in Percy Jackson as lore came from the Ancient Greeks over two thousand years earlier and was actually written down by the Ancient Greek poet Hesiod, in "Theogony."