This is a really interesting action\adventure novel that is pretty much a Clive Cussler novel. I enjoy those novels to an extent, never elevating them to a level of greatness, but I find the plots interesting. This one has a plot that rivals ANYTHING Cussler ever came up with. A clever Nazi scheme, mysterious radioactivity, and a modern mining engineer sent along to make certain an old American base remains secure and safe to enter. From there it follows the Clive Cussler formula writing that has to include odd locations, a big chase scene, and macabre deaths for the bad guys... (okay, I don't think that's a real spoiler-- we expect the good guy to win)... Good pulpy writing, and a nice change of pace for me. I felt that the author dragged the conclusion out a bit much... I would've preferred that the unit used to escape have been used in a different manner, one in which it was designed to do, to stop the bad buy and end the story there.. but NOOOOOO!