That is soon to occur, and Swan should be there too. Yet still she stands on her promontory. More than once she has required retinal repair, and often she has been forced to run like a rabbit or die. Now it will have to happen again. She is directly south of the city, and fully lit by horizontal rays, like a silver flaw in one’s vision. One can’t help shouting at such rashness, useless though it is. Swan, you fool! Alex is dead-nothing to be done about it! Run for your life!

And then she does. Life over death-the urge to live-she turns and flies. Mercury’s gravity, almost exactly the same as Mars’s, is often called the perfect g for speed, because people who are used to it can careen across the land in giant leaps, flailing their arms for balance as they bound along. In just that way Swan leaps and flails-once catches a boot and falls flat on her face-jumps up and leaps forward again. She needs to get to the platform while the city is still next to it; the next platform is ten kilometers farther west.

She reaches the platform stairs, grabs the rail and vaults up, leaps from the far edge of the platform, forward into the lock as it is halfway closed.

SWAN AND ALEX

Alex’s memorial ceremony began as Swan was straggling up Terminator’s great central staircase. The city’s population had come out into the boulevards and plazas and were standing in silence. There were a lot of visitors in town as well; a conference had been about to begin, one that had been convened by Alex. She had welcomed them on Friday; now on the following Friday they were holding her funeral. A sudden collapse, and they hadn’t been able to revive her. And so now the townspeople, the diplomat visitors: all Alex’s people, all grieving.