In times of crisis no option can be left unexplored.

No one knew that more than the U.S. Department of Defense during World War II. Desperate to hasten the end of the war, they embarked on a bizarre experiment: if they could make a full-size warship invisible, they could win the war.

Stranger still, the first man to talk about the experiment met with a mysterious death.

Now, more than fifty years later, how far will the government go to keep the true story from being told?

When mathematics expert and crack computer-hacker Alice Henreid begins to investigate the extraordinary events surrounding the Philadelphia Experiment, she has no idea that soon she will be dealing with a US Defence Intelligence Agency and even jeopardising her own life!

Factual information files follow the main story, including biographies, witness statements and debriefings - these allow the reader to make up their own mind about the event.