[5] After both brothers had matured they set out to destroy the Naayééʼ, who were abominations born from "unnatural means" (specifically women having intercourse with objects instead of men).
[8] The trials they have to go through are different depending on the version of the story, but most involve figuring out clever ways to climb up into the sky and get past the guards of the sun's house.
Once they have proved themselves to their father, he gifts them weapons to help them kill the rest of the Naayééʼ, chief among them being a quiver full of lightning bolts.
Whichever method is used to kill the giant, it almost always involves taunting it from a hiding place and striking a fatal blow with a lightning bolt.
[10] Naayééʼ Neizghání is mentioned, and is a recurring theme, in Roger Zelanzy's book, Eye of Cat.