Fabio Pietroboni

When Pietro receives a package containing an ancient artifact and a coded message from his uncle, he thinks he's simply solving an old family riddle. He's wrong. What he holds in his hands is an artifact that defies every law of physics: a blade of silvery metal, incredibly light yet harder than diamond, capable of activating mechanisms buried millennia before the founding of Rome.

From Istanbul to Siwa, a trail of blood and clues links the disappearance of a researcher and eminent expert in Byzantine history to a shocking discovery made deep in the depths of Derinkuyu. To piece together the puzzle, Pietro is forced to embark on a series of journeys and leave his safe haven. He must assemble an unlikely team, one that will prove to be a perfect match, capable of anticipating the moves of an invisible enemy. Between risky dives into the wreck of a German submarine chaser sunk during World War II, daring escapes, and ancient Semitic prophecies, the treasure hunt becomes a fight for survival. The secret of Zerzura isn't just a place. It's an answer the world isn't yet ready to hear.