Book III of Destroyermen. After being swept from the World War II Pacific into an alternate world, Lt. Commander Reddy and the crew of the USS Walker have allied with the peaceful Lemurians in their struggle against the warlike, reptilian Grik, but they are already outgunned and outmanned. The Japanese juggernaut Amagi, also trapped in this strange world, is under Grik control and soon they will have amassed a force that no amount of firepower and technology will be able to stop.  As the raging conflict approaches, Reddy, his crew, his allies and his loved ones face annihilation.  Bu hope may be just over the horizon.