Did a top-secret US Navy experiment in 1943 really succeed in making newly built destroyer invisible? Or even, according to some accounts, disappear altogether from its berth in Philadelphia and reappear minutes later in Norfolk, Virginia? If it was so successful, why was the project abandoned and hushed up? Delving into secret files and interviewing witnesses, Berlitz and Moore have uncovered a fantastic tale or horrific side-effects on crew members, strange disappearances and unexplained deaths, combined with amazing evidence that the experiment actually happened. If true, it opens up possibilities that few would dare to contemplate.