Dive in the Sun

The Allies are poised for the invasion of Italy.
Yet the Germans hold a vital card: a floating dock, the only one in the Adriatic large enough to take a major warship. Moored at a small port near Rimini, it is exposed, vulnerable.
It must be destroyed before the Germans can tow it to a safer harbour. Air, surface and conventional submarine attacks are out of the question. Only one team can do the job and still stand a chance of surviving - the crew of HM Midget Submarine XE 51...
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A thrilling tale of naval warfare from Douglas Reeman, the all-time bestselling master of naval fiction, who served with the Royal Navy on convoy duty in the Atlantic, the Arctic and the North Sea. He has written dozens of naval books under his own name and the pseudonym Alexander Kent, including the famous Richard Bolitho books set during the Napoleonic Wars.