Game Of Shadows by Ernest Dempsey

Someone has discovered a Nazi weapon of incredible power. And their intentions aren’t good.

Publisher Description

In the final days of World War II, a mysterious German U-boat was seen by a United States naval vessel in the Atlantic Ocean, just north of South America.

Before the ship could fire upon the sub, it vanished.

History tells us that, after the war, the German high command scattered across world hoping to evade punishment for their crimes.

What it doesn’t tell us is what they took with them…