Why would ETs leave an advanced craft on Earth? Could it be an invitation to connect with an ancient civilization on the moon? Retired counterintelligence agent Richard Doty reveals details of a UFO crash named Polyzena, which led to the highly classified operation, Sapphire Sele. The mission aimed to reverse-engineer the craft, build a replica, and establish a moon base. After multiple failed attempts, the military discovered they could only fly the ship telepathically. On the dark side of the moon, they uncovered ancient structures, vast caves, and mysterious buildings. However, something disturbing occurred, halting further missions. What did they encounter that left them so shaken?