The McKenzie Files, Book 3: Obliteration
by Barry K. Nelson
Silencers Colin, Kelly, and Diane still faithfully serve the United Protectorate on Maseklos Prime, but the war with the Brelac is not going well. With an advanced warp-drive ship, they're sent to find other human colonies willing to help, but instead discover the most powerful adversary yet. Humanity faces total obliteration, and even with their unique gifts, they may be powerless to stop it.