Earth Core
I’ve been listening to the free audio book, Earth Core, by Scott Sigler on Podiobooks.com.
The premise is when a mysterious double sided platinum blade is found in a cave, the largest deposit of platinum (multi billion $$$) on the planet is discovered three miles under a mountain. A mining company, called Earth Core, needs not only to stake a claim but find a way to extract the platinum. The miners have their hands full when the platinum ‘deposit’ fights back.
From the super ex-CIA agent to the spelunking uber-geologist, the story is a wild one. I’m very impressed with Mr. Sigler’s ability to make the characters and the scenario seem very real.
If you are into adventure stories and a little gore won’t phase you, treat yourself to a good time by reading or listening to Earth Core. You won’t forget it. 
