With Kent, Jimmy Olsen, Tumbleweed Jones, and schoolteacher Mary Lewis at his side, Superman faces the scorching heat and the perplexing riddles that lead them to a cave of secrets. As they follow the cryptic clues etched onto the Silver Arrows, the team stumbles upon a startling discovery that could change the course of their adventure – and possibly lead to a hidden treasure.

 Original Air Date: November 10, 1941