Got trouble with aliens? Call the Alien Hunters. A group of scruffy mercenaries, the Alien Hunters travel the galaxy in their starship, a mechanical dragon that spits out plasma like dragonfire. If an alien has invaded your space station, asteroid mine, or lunar colony, the Alien Hunters will remove the pest for you. Low rates. No questions asked. Raphael "Riff" Starfire, a guitarist-turned-gunslinger, and Nova, a warrior-princess with an electric whip and a bad attitude, lead the Alien Hunters. They’re the solar system’s best pest controllers. Yet now they face a threat all their guns and grit might be unable to stop. The skelkrins, a race of apex predators from deep space, are swarming across the galaxy. Planets burn in their wake. As the skelkrins draw closer to Earth, will Riff and Nova be the ones hunting aliens... or will aliens hunt them?

The Singularity. The day the machines gained awareness. The day they turned cruel. The day they overthrew their makers. In a distant star system, a planet-sized computer unleashes its fleets of warships, armies of robots, and a swarm of killer drones. Their purpose is destroy all life. As the cosmos crumbles, one team steps up to the The Alien Hunters. The Alien Hunters are galactic pest controllers, not an army. Their spaceship is old and clunky. They specialize in crushing the odd space bug, not a fleet of vicious machines. They're a rolled-up newspaper when the cosmos needs an A-bomb. But they're fast, they're brave, and they're just foolhardy enough to charge right into battle. As the robots spread across the galaxy, slaying all in their path, the Alien Hunters fly out to meet them. The war between life and machine begins.

On a dead world orbiting a black hole, shadows awaken. Some call them ghosts. Others believe them mere figments of the imagination. Yet for the scientists stranded on this rocky outpost, the evil haunting their halls is all too real. A handful of men and women have come here, to this desolate world light-years away from civilization. They came to study the black hole, this anomaly that breaks all their calculations. A black hole more like a living creature. A god of darkness. And through the halls of the observatory, this deity's warriors scurry, whisper, reach from the shadows. Creatures woven of darkness, an evil from beyond. Only one team of heroes can save the scientists stranded here. The Alien Hunters have never faced anything like these shadowy spirits. They're galactic pest controllers, not ghostbusters. Yet as the evil from the black hole threatens to overwhelm the entire cosmos, the Alien Hunters find themselves staring into the darkness . . . and finding terror.