Amir Tarkos is one of the only humans in the Predator Corp, the most feared and respected military force in the Galaxy. With his partner Bria, a bear-like carnivore, Tarkos is on a dangerous and difficult mission to locate the last surviving Ulltrians, a race that once extinguished much of the life in the Galaxy.
With a team of allies, Tarkos and Bria locate and investigate the twin sunless worlds where the last Ulltrians dwell. In an ocean under ice, they must discover the war plans that could destroy the Galactic Alliance, and Earth with it, if the Ulltrians are not stopped. Treachery awaits, and not everyone will survive the twin black worlds in deepest space.
World Hammer is a stand-alone novel, but it is also the second volume of the trilogy Evolution Commandos. In addition, it forms part of the ongoing Predator Space Chronicles, which are told in novels and short stories.