Zagreus laughs, "No, I'm certainly not planning on standing on any heads! They're safe from my feet, I assure you."

Though everything else, perhaps not so much. Maybe Zagreus should start worrying about this particular issue a little more...

"Well...the Chthonic gods, of course." Or in other words, the gods of the Underworld. The dark gods, the ones that dealt with death and darkness. Gods that weren't quite as popular as those up high on Olympus. "I'm sorry, I don't know if I'm familiar with your family...?"

But evidently some of their respective families had met, if they didn't get along. Perhaps they were another pantheon, particularly after that reference to the man's father?