But now what? Should she return to her hideaway inside the comet and wait until this ended? Checking U-space interference, she first realized this USER field extended for much further than a mere light year . . . then that it was strongest in her present location, which seemed to indicate the device generating it must be nearby. Its activation had been perfectly timed so as to drop the Polity fleet ships into a trap in the inner system. Scanning her immediate vicinity revealed the usual quantity of cold lumps of rock, but the candidate she eventually plumped for was a planetoid half the size of Earth’s moon, and only 100,000 miles away from her. Passive scanning revealed it to be much warmer than it should be, at this distance from the sun, and that it contained an ocean of liquid methane inside a crust of rock and water-ice as hard as iron.

Rather than immediately send Heliotrope in that direction, Orlandine waited and began to take measurements. Within a few hours she ascertained that the shift of USER-field strength exactly matched the planetoid’s orbital path. Confirmation, then. Now she needed to figure out how to get herself over there without being detected. The Heliotrope’s drifting path diverged from that of the planetoid, and firing up her engines out here would be like igniting a flare in the darkness, so any detectors would pick her up instantly. It took her only seconds to work out the solution to this dilemma. Using air jets, she could manoeuvre into a position which, in twenty-three minutes, would bring her into collision with one of the asteroidal masses. Prior to that collision she could fire her fusion engines undetected for 0.6 of a second into the asteroid’s surface. This was predicated on any detectors being sited only on the planetoid, which was a risk she would have to take. This move would take her on to the next asteroid. Three similar trajectory changes in all would result in Heliotrope being set on a course to intercept the planetoid’s orbit. Landing there without using the engines would be well within ship’s specs, and Heliotrope possessed mooring harpoons that could prevent it bouncing away in the low gravity. After that things would become rather more complicated, for Orlandine must somehow figure out how to destroy a USER, which she rather suspected lay in the methane sea, a thousand miles below the surface.