Another brilliantly immersive, stunning and stirring all-guns-blazing wartime thriller from multi-million copy bestselling author Douglas Reeman. Fans of Clive Cussler, Bernard Cornwell and Wilbur Smith will be gripped from page one!

'One of our foremost writers of naval fiction' -- Sunday Times
'Mr Reeman writes with great knowledge about the sea and those who sail on it' --The Times
'A gripping read' -- ***** Reader review
'This book holds your attention from beginning to end' -- ***** Reader review
'A real can't-put-down read' -- ***** Reader review
'Another excellent, unputdownable story from the master storyteller, fast paced and full of just the right amount of detail, very believable characters. Get this book!' -- ***** Reader review

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February 1943: As the balance of the war slowly shifts in Britain's favour, Lieutenant-Commander Steven Marshall brings his battle-scarred submarine into home port.

Captain and crew are exhausted after fourteen months' continuous service, but for most there can be no thought of leave. If the enemy collapse in North Africa is to be exploited, every experienced man will be needed. Marshall must return to the Mediterranean, but this time to a very different kind of war.

For his new command is secret and extremely hazardous - a captured German U-boat...