Swamp Thing: Green Hell

"The Earth is all but done. The last remnants of humanity cling to a mountaintop island lost in endless floodwater. The Parliaments of the Green, the Red, and the Rot all agree: it's time to wipe the slate clean and start the cycle of life over again. And to do so, they've united their powers to summon an avatar--one of the most horrific monsters to ever stalk the surface of this forsaken planet. Against a creature like that, there can be no fighting back--unless you have a soldier who understands the enemy. Someone who has used its tactics before: someone like Alec Holland. Of course, it would help if Alec Holland hadn't been dead for decades"--