Wicked Beauty (Dark Olympus #3)

In Olympus, you either have the power to rule...or you are ruled. Achilles Kallis may have been born with nothing, but as a child he vowed he would claw his way into the poisonous city's inner circle. Now that a coveted role has opened to anyone with the strength to claim it, he and his partner, Patroclus Fotos, plan to compete and double their odds of winning.

Wicked Beauty is book number 3 in the Dark Olympus series by Katee Robert.