The Mystery Beneath. Word Search Puzzle Solver. The Mystery Beneath word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. A group of treasure hunters discover a mysterious object at the bottom of the Baltic Sea in this documentary. Theories abound about the large object's origins. It might be a UFO manmade or it might be a naturally occurring phenomenon. Nobody knows. This includes identifying and searching for words that are related to : Documentary, Roger Brett, Peter Lindberg, Dennis Asberg .