“It tells me why Heldon wants his spindizzies fixed. I knew he wasn’t telling me the straight goods, but that old Laputa gag never occurred to me—more recent cities aren’t strong enough in the keel to risk it. But with all the mass this burg packs, it can squash us flat —and we’ll just have to sit still for it!”

“I don’t understand—”

“It’s simple enough. Your prophet Maalvin used IMT like a nutcracker. He picked it up, flew it over the opposition, and let it down again. The trick was dreamed up away before spaceflight, as I recall. Karst, stick close to me; I may have to get a message to you under Heldon’s eye, so watch for— Sst, here he comes.”

The Proctor had been uttered by the alleyway like an untranslatable word. He came rapidly toward them across the crumbling flagstones.

“I think,” Heldon said, “that we are now ready for your valuable aid, Mayor Amalfi.”

Heldon put his foot on a jutting pyramidal stone and pressed down. Amalfi watched carefully, but nothing happened. He swept his flash around the featureless stone walls of the underground chamber, then back again to the floor. Impatiently, Heldon kicked the little pyramid.

This time, there was a protesting rumble. Very slowly, and with a great deal of scraping, a block of stone perhaps five feet long by two feet wide began to rise, as if pivoted or hinged at the far end. The beam of the mayor’s flash darted into the opening, picking out a narrow flight of steps.

“I’m disappointed,” Amalfi said. “I expected to see Jonathan Swift come out from under it. All right, Heldon, lead on.”

The Proctor went cautiously down the steps, holding his skirts up against the dampness. Karst came last, bent low under the heavy pack, his arms hanging laxly. The steps felt cold and slimy through the thin soles of the mayor’s sandals, and little trickles of moisture ran down the close-pressing walls. Amalfi felt a nearly intolerable urge to light a cigar; he could almost taste the powerful aromatic odor cutting through the humidity. But he needed his hands free.

He was almost ready to hope that the spindizzies had been ruined by all this moisture, but he discarded the idea even as it was forming in the back of his mind. That would be the easy way out, and in the end it would be disastrous. If the Okies were ever to call this planet their own, IMT had to be made to fly again.