Hoping to take possession of a new alien star-hopping portal, Roarke and Selene are tasked with transporting an assassin, who is herself being targeted.

Hoping to take possession of a new alien star-hopping portal, Roarke and Selene are tasked with transporting an assassin, who is herself being targeted.

For years Gregory Roarke and his Kadolian partner Selene worked as crocketts, combing through the atmospheres of uninhabited worlds for places that might be colonized or hold valuable resources. Now, they work for the Icarus Group, a top-secret government organization hunting for portals created by a long-vanished alien race, portals that can teleport a person hundreds or thousands of light-years in the blink of an eye.

Usually, those hunts are long and tedious. But Roarke has now been handed an intriguing offer. A criminal boss, Robertine Cherno, will hand over a hitherto unknown portal to the Icarus Group in exchange for Roarke and Selene agreeing to transport a passenger named Nikki across the Spiral.