Malta is one of the most mysterious islands in the world. A prehistoric civilization once thrived here building megalithic sites all over the landscape, yet its most mysterious site lies hidden deep underneath the ground. Known as the Hypogeum of ÄŚal Saflieni, this subterranean labyrinth of interconnecting elliptical chambers was engineered straight from the bedrock and features three different levels. This mysterious site features an oracle chamber that resonates throughout the entire structure where 7,000 + skeletons were discovered inside - most of whom possessed elongated skulls. Who were these ancient humanoids? Strangest of all, stories from the 1920s recount how a group of children descended down into the Hypogeum never to return again...