Mysterious Castles of Clay. Word Search Puzzle Solver. Mysterious Castles of Clay word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. Mysterious Castles of Clay is a 1978 film about a termite colony; filmed in Kenya by film-makers Joan and Alan Root and narrated by Orson Welles. (narration replaced by Derek Jacobi in a later release titled "Castles of Clay") This includes identifying and searching for words that are related to : Documentary, Orson Welles, Derek Jacobi .