On the surface at Brinkmann IV (“Moonlight”), in IC4756, 1300 light-years from Earth.

Autumn 2230.

IT WAS THE most majestic series of structures David Collingdale had ever seen. Steeples and domes and polygons rose out of ice and snow. Walkways soared among the towers, or their remnants. Many had collapsed. There were pyramids and open squares that might once have been parks or courtyards. An obelisk anchored the center of the city. It was a place out of time, frozen, preserved for the ages, a landscape that might have been composed by Montelet. A place of crystal and glass, and, in a kinder age, of flowering trees and shaped hedges and beckoning forest. Catch it at the right time, when its giant moon, half again as big as Luna, was in the sky, and one might have thought that here was the celestial city, Valhalla, Argolis, El Dorado by night.

It looked too ethereal to have actually served as a home for a thriving population. Rather, Collingdale could not get away from the sense that it had been intended by its builders as a work of art, to remain unused, to stand as a monument rather than a city. Several of the towers had collapsed, broken fragments rising out of a thick carpet of snow. Its name was unknown, so they called it Moonlight, the city and the world and the sense of something lost.

A bleak wind howled down the empty streets, chilling him even in the e-suit, which was apparently not functioning properly. He’d see to getting it adjusted when he got back to the dome. Wouldn’t want to have it fail out here at twenty below.

The sun was struggling to get above a flat mountain range. Several thousand years ago, something had gone wrong with it. Abrams had explained it to him, a surfeit of metals or some such thing. Just temporary, he’d insisted. Be back to normal, he expected, in another few thousand years. Not that it would matter.