Man in the Middle — Michelle Muckley

Book three in The Dawn series. Life in Omega Tower is not what Zack expected, especially now he understands the relationship between the Conservators and the Drifters. He had his chance to make a choice, and now Zack feels a long way from home. But with the help of his new friend Selena he takes his first Renunciation Pledge and vows to become a good citizen of the Republic. But tensions are rising and rebellions are forming in the Republic of New Omega. Desperate to protect Leonard, Selena promises Zack that she will get a message to him. But when she comes to him begging for help he is faced with another dilemma. He turns to Emily for help, swearing to do whatever it takes to help Selena. But there are others who have invested in Zack, and they have other plans.