In addition to such simple, arithmetical estimates of a ship’s capability, it was, of course, always a good idea when dealing with an Eccentric craft to have just that little extra bit of an edge. Intelligence, to be specific; an inside view; a spy.

As it approached the Dreve system, the Plate class GSV Sleeper Service was travelling at its usual cruising speed of about forty kilolights. It had already announced its desire to stop off in the inner system, and so duly started braking as it passed through the orbit of the system’s outer-most planet, a light week distant from the sun itself.

The Yawning Angel, the GSV which was shadowing the larger craft, decelerated at the same rate, a few billion kilometres behind. The Yawning Angel was the latest in a long line of GSVs which had agreed to take a shift as the Sleeper Service’s escort. It wasn’t a particularly demanding task (indeed, no sensible GSV would wish it to be), though there was a small amount of vicarious glamour associated with it; guarding the weirdo, letting it roam wherever it wanted, but maintaining the fraternal vigilance that such an enormously powerful craft espousing such an eccentric credo patently merited. The only qualifications for being a Sleeper Service shadow were that one was regarded as being reliable, and that one was capable of staying with the SS if it ever decided to make a dash for it; in other words, one had to be quicker than it.

The Yawning Angel had done the job for the best part of a year and found it undemanding. Naturally, it was somewhat annoying not to be able to draw up one’s own course schedule, but providing one took the right attitude and dispensed with the standard Mind conviction that held efficiency to the absolute bottom line of everything, it could be an oddly enhancing, even liberating experience. GSVs were always wanted in many more places at the same time than it was possible to be, and it was something of a relief to be able to blame somebody else when one had to frustrate people’s and other ships’ wishes and requests.

This stop at Dreve had not been anticipated, for example - the SS’s course had seemed set on a reasonably predictable path which would take it through the next month - but now it was here, the Yawning Angel would be able to drop off a few ships, take another couple on, and swap some personnel. There should be time; the SS had never acknowledged the presence of any of the vessels tailing it, and it hadn’t posted a course schedule since it had turned Eccentric forty years earlier, but it had certain obligations in terms of setting re-awakened people back in the land of the living again, and it always announced how long it would be staying in the systems it visited.