Bay heard her disconsolate weeping and came to see what had happened. Instantly she called to Pol and Kwan, then phoned for a doctor. Once Wind Blossom had followed the gurney carrying her grandmother’s body out of the room, Bay straightened her plump shoulders and stood at the console. She asked the computer if it had finished its program.

PROGRAM COMPLETED flashed on the screen—almost indignantly, Bay thought in the portion of her mind that was not sorrowing. She tapped out an information query. The screen displayed a dazzling series of computations and ended with REMOVE UNIT! DANGER IF UNIT IS NOT IMMEDIATELY REMOVED!

Astonished, Bay recognized the paraphernalia on the workspace beside the electronic microscope. Kitti Ping had been manipulating gene patterns again, a complicated process that Bay found as daunting as Wind Blossom did, despite Kitti Ping’s encouragements. So Kitti had made those infinitesimal alterations in the chromosomes. Bay felt the chill of a terrible apprehension sweep through her plump body. She pressed her lips together. That moment was not the time to panic. They must not lose what Kitti Ping had been making of the raw material of Pern.

With hands that were not quite steady, she unlocked the microcylinder, removed the tiny gel-encapsulated unit, and placed it in the culture dish that Kitti had readied. An agony as severe as a knife stab almost doubled Bay up, but she fought the grief and the knowledge that Kit Ping Yung had died to produce that altered egg cell. The label was even prepared: Trial 2684/16/M: nucleus #22A, mentasynth Generation B2, boron/silicon system 4, size 2H; 16.204.8.

Walking as fast as her shaky legs would permit and gradually recovering her composure, Bay took the final legacy of the brilliant technician to the gestation chamber and put it carefully beside the forty-one similar units that held the hopes of Pern.

“That was the second probe to malfunction,” Ezra told Paul and Emily, his quiet voice ragged with disappointment. “When the first one blew up, or whatever, I thought it a mischance. Even vacuum isn’t perfect insulation against decay. Probe motors could misfire, their recording device clog somehow or other. So I refined the program for the second one. It got exactly as far as the first one, and then every light went red. Either that atmosphere is so corrosive even our probe enamels melt, or the garage on the Yokohama has somehow been damaged, and the probes, too. I dunno, guys.”