Project Riese (Project Riese #1)

It’s 1952. The wound WWII inflicted on the world is still fresh. Sam Safdie and his ragtag group of treasure hunters have been searching for the fabled map of the Owl Mountains for years... and they finally found it. Their journey leads them to a massive war complex that hides both unknown horrors and a fortune in gold. However, the deeper they travel, the more they realize the complex has developed a life of its own and that some secrets are better left buried in the past.