Book 2 of 4 in the Breakthrough Series
Author: Michael C. Grumley
Genre: Adventure, Fiction, Thriller
Format: Paperback

Description:
Facing the cold, clear glass, Alison Shaw stared nervously into the giant seawater tank.
It was just one year ago that she and her team of marine biologists had stunned the world with their incredible breakthrough. And now, it was about to happen again.
But an ocean away, something strange was unfolding. Along a lonely coast in South America, an experimental Russian submarine, long thought to have been dismantled, has suddenly resurfaced. And the U.S. Navy has taken notice, sending officers John Clay and Steve Caesare to investigate.
The sub has been studying a group of unmarked soldiers. Disappearing into the jungle each night beneath the cover of darkness. Something has been discovered.something big.
And unfortunately, the soldiers are about to learn that making the find of the century is one thing. Keeping it..is another.