Maya stopped. On Lena's map, Nathan's transport route had changed. The new path left the main road and angled toward rural roads outside the city's usual camera and communications coverage. The request had come through a Sloan administrator channel. For an instant the technical and human sides of the investigation converged with terrible simplicity.
Someone using the contractor environment was no longer merely changing the description of what had happened to a person. They were attempting to influence where that person went next.
Maya studied the new route without raising her voice. The vehicle was supposed to travel from Asheford toward an established federal interview facility, using roads with reliable communication coverage. The altered instructions would take it east onto smaller county roads, through a patchwork of fields and industrial properties beyond the city's usual monitoring area. A route change could have an innocent explanation if dispatch had authorized it for traffic or roadwork. Lena had already checked. There was no such authorization.
"Get the driver on direct voice contact," Maya said. "Tell him to disregard electronic route changes until county dispatch independently confirms them."
Lena contacted the transport through the county communications network. A voice answered over the speaker, distorted slightly by road noise. "Transport One."
"This is Agent Williams," Maya said. "Your navigation display has received instructions that weren't authorized by our dispatch. Continue only on directions confirmed by voice. Where are you now?"
"Eastbound on County Route Fourteen. Approaching the agricultural district. The system has already tried to send us off the highway twice."
Maya glanced at the county map. "Stay on Fourteen for now. We're verifying the next turn through county communications. Don't accept new instructions from the vehicle display."
"Understood."
From the rear of the vehicle came Nathan's voice. "Is something wrong?"
The driver answered calmly before Maya could. "We're correcting a navigation issue, Mr. Cole. You're fine."
Maya let the explanation stand. She did not want Nathan given false reassurance, but she also did not want to alarm him with a theory the evidence had not yet established. The investigation had already forced him to question whether official systems existed to serve him or to control the account of what happened to him. Now a navigation problem threatened to make that fear physical.
At the hidden server workstation, Owen confirmed that the route requests were coming through a contractor administrator session. Their immediate origin was identifiable, but the person controlling the session remained obscured by the vendor's remote environment. He explained the distinction in plain terms. They knew which authorized channel had issued the commands. They did not yet know which individual had used that channel or from where the request began.
"We can terminate the contractor connection," he said.
"How quickly can we separate its ability to direct vehicles from our ability to preserve its activity?" Maya asked.
"We're checking the dependencies. We should be able to block further control while retaining a record of what the connection tries to do."
"Then that's our objective. Witness safety first. Evidence preservation only as far as it doesn't put him at risk."