The most feared world in the galaxy: The Well of Furies.
From this planet, the godlike Ulltrians waged war on all life among the stars. Long thought extinct, the Ulltrians have returned. Now all the galaxy is in danger. Humanity faces extinction.
Amir Tarkos is the only human in the Predator Corp, the most elite military force in the galaxy. With his partner, Bria, a bear-like carnivore, Tarkos is given a dangerous and difficult mission. Tarkos and Bria must locate the World Hammer, a pair of co-orbiting sunless planets that are the last refuge of the Ulltrians. But to find the World Hammer, they first must brave the dangers of the Ulltrian homeworld, The Well of Furies.
To save Galactic civilization, Tarkos and Bria will have to work with a team of strange aliens and artificial intelligence, explore the perilous ruins of an ancient moon, dare the depths of an ocean that engulfs a dark planet, and fight a fierce battle in the ice rings of the burning world. Can one human being save the galaxy?