Aside from a skeptical snort from Coyote, there was no response to this. After a long time Nirgal said, “My impression is that some of these groups are wary of Gamete, because of the First Hundred in it. No one wants to give up any autonomy to what’s already perceived as the most powerful sanctuary.”

“But they could work on that at a meeting,” Art said. “That’s part of what it would be for. Among other things. You all need to work together, especially if the transnat police get more active after what they found out from Sax.”

Sax nodded at this. The rest of them considered it in silence. Somewhere in the consideration Art started to snore, but Nirgal was awake for hours, thinking about it.

• • •

They approached Senzeni Na in some need. Their food supplies were adequate if they rationed them, and the car’s water and gases were recycling so efficiently that there was little loss there. But they were simply short of fuel to run the car. “We need around fifty kilos of hydrogen peroxide,” Coyote said.

He drove up to the rim of Thaumasia’s biggest canyon; and there in the far wall was Senzeni Na, behind great sheets of glass, the arcades all full of tall trees. The canyon floor in front of it was covered with walktubes, small tents, the great factory apparatus of the mohole, the mohole itself, which was a giant black hole at the south end of the complex, and the tailings mound, which ran up the canyon far to the north. This was reputed to be the deepest mohole on Mars, so deep that the rock was getting a bit plastic at the bottom, “squishing in,” as Coyote put it— eighteen kilometers deep, with the lithosphere in the area about twenty-five.

The mohole operation was almost completely automated, and the majority of the town’s population never went near it. And many of the robot trucks hauling rock out of the hole used hydrogen peroxide for fuel, so the warehouses down on the canyon floor next to the mohole would have what they needed. And security down there dated from before the unrest, and had been designed in part by John Boone himself, so it was woefully inadequate to withstand Coyote’s methods, particularly since he had all of John’s old programs in his AI.

The canyon was exceptionally long, however, and Coyote’s best way down to the canyon floor from the rim was a climbing trail, some ten kilometers downcanyon from the mohole. “That’s fine,” Nirgal said. “I’ll get it on foot.”

“Fifty kilos?” Coyote said.

“I’ll go with him,” said Art. “I may not be able to do mystic levitation, but I can run.”

Coyote thought it over, nodded. “I’ll lead you down the cliff.”