X the Unknown. Word Search Puzzle Solver. X the Unknown word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. Army radiation experiments awaken a subterranean monster from a fissure that feeds on energy and proceeds to terrorise a remote Scottish village. An American research scientist at a nearby nuclear plant joins with a British investigator to discover why the victims were radioactively burned and why shortly thereafter a series of radiation-related incidents are occurring in an ever-growing straight line away from the fissure. This includes identifying and searching for words that are related to : Michael Brooke, Neil Wilson, Edward Chapman, Brown Derby, Frazer Hines, Peter Hammond, Frank Taylor, Mystery, Leo McKern, Horror, Edwin Richfield, Ian MacNaughton, Norman MacOwan, Science Fiction, Lawrence James .