The Gilgamesh. Jack trilogy, #2

From the depths, they rose-giant, writhing worms, their rancid stench heralding nightmares made flesh. Jack Kamping thought he'd escaped the horrors of the Gilgamesh. But his fragile peace on Footprint Island shatters when General Skyler arrives with a chilling proposal: weaponize the island's sinister forces to create an army of mutants. Caught in a web of manipulation and betrayal, Jack must make impossible choices.
Even Kim, the woman he loves, becomes a pawn in the deadly game. But the island hides a darker truth-one that threatens to consume Jack's humanity. As nightmares bleed into reality, he faces his ultimate fear: the monster within. A gripping fusion of horror and science fiction, The Gilgamesh will haunt you long after the final page.