Nomad by George O. Smith

His only hope of escaping detection was his knowledge that the negative-detector, developed in the _Orionad_ for use against sub-ships was less sensitive as to range than the positive-detector. The establishment of negative evidence is never conclusive. And his souped-up detector would outrange any but another souped-up job.

So Guy coasted for days, which at five thousand miles took him far, far beyond the orbit of Pluto. Then he crammed on the deceleration and came to a stop, with respect to Sol, and then started back along a course several degrees to the south and thirty degrees to the right of Sol. He drove at the same 10-Gs for an hour and then closed the barrier about him once more.