Kallia has been invisible her whole immortal life — a quiet craftswoman-goddess who hangs the constellations no one thanks her for, veiling her own divine light until it's barely a flicker, freshly cast off by a husband who never loved her. Helios has never wanted for anything — the Sun-Lord of Olympus, the coldest and most magnetic god in the heavens, who reads every heart in a single beat. So his devil's bargain sounds simple: let him teach her the art of desire, and he'll hand her the perfect god — golden Ploutos, the richest match in creation — on a silver platter. A project for him, a shortcut for her, no feelings, sworn on the Styx. But every lesson breaks the wrong heart — his. The goddess chasing the perfect god can't stop staring at the untouchable one teaching her how to burn. And the closer they get to winning the match she thought she wanted, the harder it is to ignore the one thing neither of them bargained for: real, reckless, impossible love — the kind that costs Helios his control, Kallia her plan, and both of them the lie that this was ever just a game.
