George Craig had finished checking it when Lake arrived. He looked up from his instruments, remarkably similar in appearance to a sketch of the old George Ord⁠—a resemblance that had been passed down to him by his mother⁠—and said:

“The entire circuit is either gone or ready to go. It’s already operated for a lot longer than it should have.”

“It doesn’t matter,” Lake said. “It’s served its purpose. We won’t rebuild it.”

George watched him questioningly.

“It’s served its purpose,” he said again. “It didn’t let us forget that the Gerns will come again. But that isn’t enough, now. The first signal won’t reach Athena until the year two thirty-five. It will be the dead of Big Winter again then. They’ll have to fight the Gerns with bows and arrows that the cold will make as brittle as glass. They won’t have a chance.”

“No,” George said. “They won’t have a chance. But what can we do to change it?”

“It’s something I’ve been thinking about,” he said. “We’ll build a hyperspace transmitter and bring the Gerns before Big Winter comes.”

“We will?” George asked, lifting his dark eyebrows. “And what do we use for the three hundred pounds of copper and five hundred pounds of iron we would have to have to make the generator?”

“Surely we can find five hundred pounds of iron somewhere on Ragnarok. The north end of the plateau might be the best bet. As for the copper⁠—I doubt that we’ll ever find it. But there are seams of a bauxite-like clay in the Western hills⁠—they’re certain to contain aluminum to at least some extent. So we’ll make the wires of aluminum.”