And then suddenly the world dropped away again, and he flew out over the immense open canyon of Candor Chasma, Shining Canyon, the ramparts of its eastern wall in fact shining at that very moment, amber and bronze in the sunset’s light. To the north was the deep entrance to Ophir Chasma, to the south the spectacular buttress-walled opening down to Melas Chasma, the central giant of the Marineris system. It was Mars’s version of Concordiaplatz, he saw, but much bigger than Earth’s, wilder, looking untouched, primal, gigantic beyond all human scale, as if he had flown back two centuries into the past, or two eons, to a time before the anthropogenesis. Red Mars!

And there out in the middle of broad Candor was a tall diamond mesa, a caprock island standing nearly two kilometers above the canyon floor. And in the sunset’s hazy gloom Nirgal could make out a nest of lights, a tent town, at the southernmost point of the diamond. Voices welcomed him over the common band on his intercom, then guided him in to the town’s landing pad. The sun was winking out over the cliffs to the west as he brought the blimpglider around and descended slowly into the wind, putting it down right on the figure of Kokopelli painted as a target on the landing pad.

2

Shining Mesa had a large top, more a kite shape than a diamond proper, thirty kilometers long and ten wide, standing in the middle of Candor Chasma like a Monument Valley mesa writ large. The tent town occupied only a small rise on the southern point of the kite. The mesa was just what it appeared to be, a detached fragment of the plateau that the Marineris canyons had split. It was a tremendous vantage point for viewing the great walls of Candor, with views through the deep, steep gaps into Ophir Chasma to the north and Melas Chasma to the south.

Naturally such a spectacular prospect had attracted people over the years, and the main tent was surrounded by new smaller ones. At five kilometers above the datum, the town was still tented, though there was talk of removing it. The floor of Candor Chasma, only three kilometers above the datum, was patched with growing dark green forests. Many of the people who lived on Shining Mesa flew down into the canyons every morning to farm or botanize, floating back up to the mesa’s top in the late afternoons. A few of these flying foresters were old underground acquaintances of Nirgal’s, and they were pleased to take him along and show him the canyons, and what they did in them.