The Labrynth of Forgotten Forges

Irene always thought Greek mythology was just stories. Ellie always thought rules were made to be broken. But when a silver owl crowns Irene in their dorm room, the two roommates discover the myths are alive-and they're in the middle of them.

Fleeing their school with nothing but too many questions, the girls are swept into a world of gods, monsters, and demigods. At Camp Half-Blood, they're thrown together with Leo Valdez, a mechanic with fire at his fingertips and secrets of his own. Their quest: enter the Labyrinth, find the long-forgotten forges of Hephaestus, and stop a power that could shatter the mortal and divine worlds alike.

But the Labyrinth has its own rules. Living automatons adapt to every attack. Rival demigods stalk them in the tunnels. And at the heart of it all waits the Keeper of the Forge-an ancient guardian sworn to destroy all who enter.

Guided by a prophecy that speaks of fire, wit, and shadowed guile, Irene, Ellie, and Leo must decide whether to destroy the forge forever... or risk controlling a weapon powerful enough to burn the world.