In the summer of 1942, Americans believed the Gulf waters were safe. They were wrong The warm waters of the Gulf of Mexico became an unexpected underwater World War II battlefield.

A deadly German U-boat, code-named U-166, prowled the shipping lanes near New Orleans, Mobile, and the Texas coast, sinking merchant ships and spreading terror just miles from America's shores.

When the passenger freighter SS Robert E. Lee, filled with refugees and civilians fleeing earlier U-boat attacks, came under fire, a lone U.S. Navy patrol craft raced to defend her. What followed was a dramatic naval battle in the Gulf - and a mystery that remained hidden beneath the waves for decades.

Based on the true story of the only German U-boat ever sunk in the Gulf of Mexico, award winning Author Tom McAuliffe creates U-166-Gulf of Mexico 1942 a gripping semi-fictional tale of courage, tragedy, and survival unfolding beneath the waves.