In October 1943 a US destroyer sailed out of Philadelphia and supposedly vanished the result of a Navy experiment with electromagnetic radiation. The story was considered a hoax - but now Juan Cabrillo and his Oregon colleagues aren't so sure. There are rumours of a new weapon soon to be auctioned something very dangerous to America's interests and the rumours link it to the great inventor Nikola Tesla who was working with the Navy when he died in 1943. Are his notes in the hands of enemies? As Cabrillo races to find the truth he discovers there is even more at stake than he could have imagined - but by the time he realises it he may already be too late…