waterspots and cyclones in their vanguard, inundated whole areas with a storm surge the size of a small ocean, dumped enough rain to flood an entire province away . . . We thought seriously that the storms might make life on land untenable."
He went on to explain the solution he and Katrin had devised for the enormous problem: huge strings of tall, rocky barrier islands built at a furious rate by nanomachines, a wall for wind and storm surge to break against; a species of silvery, tropical floating weed, a flowery girdle about Rhea's thick waist, that radically increased surface albedo, reflecting more heat back into space. Many species of deep-rooted, vinelike plants to anchor slopes and prevent erosion, other species of thirsty trees, adaptations of cottonwoods and willows, to line streambeds and break the power of flash floods.
Planetary engineering on such an enormous scale, in such a short time, had never been attempted, not even on Mars, and it had been difficult for Katrin and Davout to sell the project to the project managers on the Cheng Ho . Their superiors had initially preferred a different approach, huge equatorial solar curtains deployed in orbit to reflect heat, squadrons of orbital beam weapons to blast and disperse storms as they formed, secure underground dwellings for the inhabitants, complex lock and canal systems to control flooding . . . Katrin and Davout had argued for a more elegant approach to Rhea's problems, a reliance on organic systems to modify the planet's extreme weather instead of assaulting Rhea with macro-tech and engineering. Theirs was the approach that finally won the support of the majority of the terraforming team, and resulted in their subsequent appointment as heads of Beagle 's terraforming team.
"Dark Katrin's memories were very exciting to upload during that time," said Katrin the Red. "That delirious explosion of creativity! Watching a whole globe take shape beneath her feet!" Her green eyes look up into Davout's. "We were jealous of you then. All that abundance being created, all that talent going to shaping an entire world. And we were confined to scholarship, which seemed so lifeless by comparison."
He looked at her. "Are you sorry for the choice you made? You two were senior: you could have chosen our path if you'd wished. You still could, come to that."
A smile drifts across her face. "You tempt me, truly. But Old Davout and I are happy in our workâand besides, you and Katrin needed someone to provide a proper record of your adventures." She tilted her head, and mischief glittered in her eyes. "Perhaps you should ask Blonde Katrin. Maybe she could use a change."
Davout gave a guilty start: she was, he thought, seeing too near, too soon. "Do you think so?" he asked. "I didn't even know if I should see her."
"Her grudge is with the Silent One, not with you."
"Well." He manages a smile. "Perhaps I will at least call."
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Davout called Katrin the Fair, received an offer of dinner on the following day, accepted. From his room he followed the smell of coffee into his hosts' office, and felt a bubble of grief lodge in his heart: two desks, back-to-back, two computer terminals, layers of papers and books and printout and dust . . . he could imagine himself and Katrin here, sipping coffee, working in pleasant compatibility.
he signed.
His sib looked up. "I just sent a chapter to Sheol," he said. "I was making Maxwell far too wise." He fingered his little goatee. "The temptation is always to view the past solely as a vehicle that leads to our present grandeur. These people's sole function was to produce us , who are of course perfectly wise and noble and far superior to our ancestors. So one assumes that these people had us in mind all along, that we were what they were working toward. I have to keep reminding myself that these people lived amid unimaginable tragedy, disease and ignorance and superstition, vile little