Peter Raeder became the Commonwealth's first ace pilot in the war against the secessionist Mollies. That battle cost him his hand - and his right to fly the nimble Speeds that had been his first love. Now he's Flight Engineer on the fast carrier Invincible, a crack new ship with a picked crew, ready to fight the Mollies who control the universe's richest anti-hydrogen mines, and the loathsome spider-like alien Fibians who have come to their aid. There are only a few problems. The pirate raiders who attack the convoy taking him to his new posting, for one. And closer to home, the traitor onboard the Invincible who engineered the grisly death of Peter's predecessor, and who'll kill the entire crew unless Peter can stop him....