"We'll find how it leaked," Ellison said. "A code doesn't walk out of a gate by itself. Someone carried it out."
After she left, Ethan sat at the table with the list in front of him: Sarah, cleared in his mind and soon to be cleared on paper. Beck, cleared the same way. The propane company, the last name standing, and the delivery six days before the night men came through his gate. He did not blame the driver. A man entering a code at a gate, doing his job, had no reason to think a camera down the road was watching his hand. But the audit had narrowed the field, and narrowing the field was how a case moved from suspicion to proof.
Chapter 10
The answer came back three days later, and it came back the way Ellison had predicted it would: not as a guess, but as a trace.
Deputy Ellison called Ethan in the morning, and then came to the cabin in the afternoon with a folder of her own, thinner than his but no less careful. She laid it on the kitchen table, beside the trespass folder and the letter folder, and walked him through it in order.
The propane company had confirmed, in writing, that only its driver had the code for Ethan's gate, and that the driver had made the delivery six days before the intrusion, entering the code at the keypad as he always did, making the delivery to the tank by the barn, and leaving by the same gate. The driver, when Ellison interviewed him, remembered the delivery clearly โ he remembered Duke watching him from the porch, and he remembered the tank gauge, and he remembered nothing unusual at the gate itself, because a man doing a routine delivery does not look for a vehicle parked down the road with its lights off.
But someone else had noticed. A neighbor down the county road, asked by Ellison whether he had seen anything unusual in the days before the intrusion, remembered a white vehicle parked on the shoulder, down the road from Ethan's gate, on the day of the propane delivery. He had not thought much of it at the time โ vehicles parked on a mountain road were not rare โ but when Ellison asked him to describe it, he described a vehicle consistent with the Explorer from the night footage, and when she asked about its markings, he remembered a magnetic sign on its door.
And the audit of the night footage itself, frame by frame, had turned up the other half of the trace: in the photographs the camera man had taken, and in the wider road-camera view, there was no direct image of the propane driver โ but the sheriff's office, working with the propane company's timeline and the neighbor's account, had established the route by which the code had leaked. The propane driver had been filmed entering the code six days earlier by a Pine Ridge patrol vehicle parked down the road, watching the gate, its camera trained on the keypad. The driver had not known. The patrol had not needed him to know. All it needed was his hand, moving across the pad, and a lens long enough to read it.
Ethan listened to Ellison finish, and he felt the last piece of the night's puzzle click into place โ not with satisfaction, because there was nothing satisfying about learning that a routine delivery had been watched and exploited, but with clarity. The code had not been shared by his daughter. It had not been shared by his veterinarian. It had been taken, by observation, from a working man doing his job, six days before two men used it to walk his road at 2:13 in the morning.
"Sarah is cleared," Ellison said, confirming what Ethan already knew. "Dr. Beck is cleared. Neither shared the code. The propane company confirms only its driver had it, and the driver did not share it either โ it was observed, not given."
Ethan nodded. He thought about calling Sarah that evening, to tell her she was cleared on paper as well as in his mind, and about calling Beck to thank him for his patience while the audit ran. He thought about the driver, too, and about how a man could do everything right and still have his routine turned into someone else's key.
"So we change the code," Ethan said.
"Today," Ellison said. "And we don't give the new code to anyone who doesn't need it, and we change the way it's entered โ shielded, varied, logged. And we upgrade the cameras, so the next time anyone parks down the road to watch a gate, the cameras watch them back."
Ethan walked with her to the gate after she finished, Duke trailing them both, and they stood there in the afternoon light, looking at the keypad, the lock, the posts. The gate was intact. The road beyond it was his. The code that had let strangers in was about to become a dead number, useless to anyone who had filmed it, and the new code would be known only to the people who needed it and to the sheriff's file.
That evening, Ethan called Sarah in Missoula. He told her the audit was complete, that she was cleared, that the code had been observed from the propane delivery and not shared by anyone she knew. Sarah was quiet for a moment, and then she said what daughters say when worry has been sitting on them for days and finally lifts.