In Malta lies an incredible underground complex dating back over 5000 years, known as the Hal Saflieni Hypogeum. This World Heritage Site is an ancient temple containing the remains of 7,000 humans. Among these remains, strange, elongated skulls were found, demonstrating baffling anomalies which have confounded experts for over a century. But why are they so strange? Who did they belong to? Could they be from another world, as some people have suggested? Why have some of them mysteriously disappeared?

 Cast List:

Tony McMahon: Former BBC news producer, author, print journalist and historian 

Dr. Karen Bellinger: Anthropologist, archaeologist, and historian 

Silvia DeBono - Historian

Dominic Selwood: Historian, barrister, bestselling author, novelist and frequent contributor to national newspapers including The Independent, The Spectator and The Daily Telegraph

Hugh Newman: Author & Researcher

Dr. Janina Ramirez: Cultural historian, broadcaster and author based at the University of Oxford

Sharon Sultana: Curator & Expert, Heritage Museum, Malta

Dr. Peggy Brunache: Historian, archaeologist and lecturer at University of Glasgow

Dr. Luke Daly-Groves: Historian, author and lecturer at the University of Central Lancashire

Emilio Persiano: Taxi Driver

Dr. Anton Mifsud: Paediatrician

Eric Meyers: Narrator

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