Michael had just rolled the spool off the catwalk when it happened: a plunge into blackness so total, so consuming in its three-dimensional nothingness, that for a heart-seizing instant he wondered if he had rolled off after the spool and simply failed to notice—that this was the darkness of death. But then he heard Kip Darrell’s voice—“Sign, we have sign! Holy shit, they’re everywhere!”—and the information shot into his brain that not only was he still alive but the lights, in fact, were out.

The lights were out!

That he had managed to make his way back down the catwalk and descend the ladder at something close to a dead run, in utter darkness, was a feat that, in hindsight, seemed completely incredible. He had taken the last few meters at a drop, tool bag swinging, knees bent to absorb the impact, and sprinted toward the Lighthouse. “Elton!” he was shouting as he skidded around the corner and mounted the porch and blasted through the door. “Elton, wake up!” He expected to find the system crashed, but when he reached the panel, Elton lumbering into the room from the other side like a big blind horse, and he saw the glow of the CRTs, all meters in the green, he froze.

Why the hell were the lights off?

He lurched across the room to the box, and there he saw the problem. The main breaker was open. All he had to do was close it, and the lights came on again.

Michael made his report to Ian at first light. The story of the power surge was the best he could come up with, to get Ian out of the Lighthouse. And he supposed a surge could do it, although this would have been logged by the system, and there was nothing in the file. The problem could have been a short somewhere, but if that were true, the breaker wouldn’t have held; the circuit would have failed again the moment he flipped the switch. He’d spent the morning checking every connection, venting and reventing the ports, charging the capacitors. There was simply nothing wrong.

Was anyone in here? he asked Elton. Did you hear anything? But Elton only shook his head. I was sleeping, Michael. I was sound asleep in the back. I didn’t hear a thing until you came in yelling.