Cinder Sigils: The Gearwright's Oath

The cold barrel of a gun is pressed against Milo’s temple, but he can’t stop staring at the forbidden sigil glowing beneath his skin. One wrong move and the Guild Inspector will execute him—or worse, drag him back to the labs to be used as a living battery. Lena Voss was sent to collar a criminal, not to protect a broke scrap-shop rat who hears the whispers of dead engines. But as the city burns and the Guild hunts them both, the only thing more dangerous than the forbidden power surging through Milo is the way he looks at her when he thinks she isn't watching. Now, with every new carving unlocking a deadly secret, Milo must decide: trust the woman hunting him, or let the engine consume everything he loves.