From the author of the bestselling U-boat series, comes the second novel in a fabulous new series about the war at sea. For the Allies, the war is at a crisis. It is time to risk all, or lose all.It is time for Lieutenant Nick Hamilton to prove himself more than a commander of extraordinary capabilities.In the supreme test of his Navel career, Hamilton is chosen to lead a secret team of Allied subs on an unprecedented series of daring missions through enemy territory. Whatever the outcome, Hamilton knows he and his fleet are making history, a small consolation when destruction seems imminent for the Devil Flotilla.