The sprawling tale of the Locke family and their mastery of the whispering iron thunders to new heights as the true history of the family is revealed to Tyler and Kinsey.
With more keys making themselves known, and the depths of the Locke’s family’s mysteries ever-expanding, Dodge’s desperation to end his shadowy quest drives the habitants of Keyhouse ever closer to a revealing conclusion.
While Gwendolyn and Lying Cat risk everything to find a cure for The Will, Marko makes an uneasy alliance with Prince Robot IV to find their missing children, who are trapped on a strange world with terrifying new enemies.
Thanks to her parents Marko and Alana, newborn Hazel has already survived lethal assassins, rampaging armies, and alien monstrosities, but in the cold vastness of outer space, the little girl encounters her family's greatest challenge yet: grandparents.
