Sylveste climbed the ramp into his crawler. The other was crammed with equipment racks and sample containers, with hammocks for his students pressed into the tiny niches of unoccupied space. They had to sleep aboard the machines because some of the digs in the sector—like this one—were over a day’s travel from Mantell itself. Sylveste’s crawler was considerably better appointed, with over a third of the interior dedicated to his own stateroom and quarters. The rest of the machine was taken up with additional payload space and a couple of more modest quarters for his senior workers or guests: in this case Sluka and Pascale. Now, however, he had the whole crawler to himself.

The stateroom’s decor belied the fact that it was aboard a crawler. It was walled in red velvet, the shelves dotted with facsimile scientific instruments and relics. There were large, elegantly annotated Mercator maps of Resurgam dotted with the sites of major Amarantin finds; other areas of wall were covered in slowly updating texts: academic papers in preparation. His own beta-level was doing most of the scutwork on the papers now; Sylveste had trained the simulation to the point where it could imitate his style more reliably than he could, given the current distractions. Later, if there was time, he would need to proof those texts, but for now he gave them no more than a glance as he moved to the room’s escritoire. The ornate writing desk was decorated in marble and malachite, inset with japanwork scenes of early space exploration.

Sylveste opened a drawer and removed a simulation cartridge, an unmarked grey slab, like a ceramic tile. There was a slot in the escritoire’s upper surface. He would only have to insert the cartridge to invoke Calvin. He hesitated, nonetheless. It had been some time—months, at least—since he had brought Calvin back from the dead, and that last encounter had gone spectacularly badly. He had promised himself he would only invoke Calvin again in the event of crisis. Now it was a matter of judging whether the crisis had really arrived—and if it was sufficiently troublesome to justify an invocation. The problem with Calvin was that his advice was only reliable about half the time.