Winter 1940 — and a lone U-boat glides silently up a Norwegian fjord, its cargo more deadly than the torpedoes in its hull. Its mission: to land a civilian on the deserted coast of Norway. Its orders: from the F?hrer himself.And for Baldur Wolz — the man they call Sea Wolf — it is a mission that will test his courage, his daring and ruthlessness to the utmost. His vicious battles with the enemy above he expects. But they are nothing to the silent horrors of the enemy within...Shark North is the second in the gripping series of novels about the U-boat war waged with grim ferocity in the bitter depths of the world’s oceans.