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Maggie seeks revenge against Neizghání, believing him to be responsible for the death of Tah and the creation of the monsters. He brands her and almost kills her, but she is rescued by Kai. Maggie agrees and is ordered to fight Neizghání. Mósí promises to give the fire drill to the winner of a duel. Maggie, Kai, and Grace's children begin working together. They seek shelter with Grace Goodacre, a local bar owner. In the carnage, Maggie and Kai kill a corrupt police officer. Tah's hogan burns down Maggie suspects Neizghání.

He also requests that she complete a task for him, giving her magical rings. She is visited by Mąʼii, the Coyote Mąʼii tells her that the drill belongs to Mósí, a cat goddess. Maggie and Kai retrieve information about a relic known as a "fire drill", which may be related to the monsters. He asks her to work with his grandson Kai Arviso, who also possesses clan powers, to destroy the witch. Tah tells her that the monster was created by a powerful witch. She seeks information about a new breed of monster from Tah, a local medicine man. Maggie becomes a bounty hunter and monster-slayer. Neizghání trains her in the art of combat, but abandons her when he perceives that she is becoming too violent. She attracts the attention of the immortal monster-slayer Neizghání and becomes his apprentice.

This traumatic event activates her clan powers, giving Maggie superhuman speed and a propensity for killing. On Maggie Hoskie's sixteenth birthday, her grandmother is murdered by witches and monsters. Certain Navajo people develop clan powers based on their ancestral tribes. In the 21st century, a worldwide flood caused by multiple earthquakes along the New Madrid fault line destroys most of the United States as magic returns to the world. The novel won the 2019 Locus Award for Best First Novel and was nominated for the Hugo, World Fantasy, and Locus Awards for Best Novel. After a supernatural disaster destroys most of North America, Navajo monster-slayer Maggie Hoskie must navigate a world of monsters and gods.

Trail of Lightning is a 2018 fantasy novel, the debut novel by Rebecca Roanhorse.
