Primal Link by Justin Sloan

When Marine Corporal Goshawk becomes part of the search team tasked with locating some missing SEALs, he expected action and plenty of it. After all, they had to send in Marines to rescue SEALs. What he didn’t expect was that the mission would completely transform him, body and spirit.

As new threats from strange beings continually challenge the team and their mission rapidly spirals out of control, odd allies emerge in unexpected places. It’s no joyride for Corporal Goshawk and his small fire team, though, because those allies—the very thing that could help them—are driving a wedge between his team and his commanding officer, along with the rest of the Marines.