My solar panels had to be replaced. Every panel, every cable, the inverter β all of it came down. Sentinel's assets paid for the work, which was the least they owed. I considered removing the system entirely. No roof, no network, no more reasons for anyone to climb up there.
Mia disagreed. "The panels didn't watch us," she said. "The people did."
She was right. So we installed a new array through an independent local company β a small outfit with three trucks and a reputation the whole county knew. Every panel was inspected before it reached the roof. The wiring route was photographed, start to finish. The inverter had no cellular access. The monitoring system sent data to one small display inside my kitchen and nowhere else.
Grace examined every component. She arrived at the installation with a signal scanner in her tote bag, and the installer looked nervous. I told him to let her work. She checked each panel, each junction, each length of cable, and she made the crew wait while she ran the scanner twice.
Panel number six was different from the others. Mia painted a narrow red line along its lower frame. The paint didn't cover the glass. It didn't reduce the output. It stayed visible from Grace's upstairs window.
Underneath the line, Mia attached a small metal label. It read: NO HIDDEN ACCESS.
The first afternoon the system reached full output, Grace stood in her yard with the scanner. No unauthorized transmission appeared. She raised one hand toward me. I raised mine back.
Sophie stayed with Grace. She returned to school slowly. The investigation became public, and reporters waited near the house for weeks. Some of them described her as the girl whose dead father lived in an attic. Grace hated that headline. Sophie hated it more.
"He didn't live in our attic," Sophie told one reporter who caught her at the fence. "He entered it that morning to recover evidence. Accuracy matters."
The reporter printed it anyway, mostly.
At school, other students asked whether her father was a spy. A criminal. A hero. Sophie answered, "He is my father." That was the only label she felt ready to use.
She began studying computer security β not because she wanted to continue his work, but because she wanted to understand how the system had entered her life. At eighteen she built a program that notified residents whenever an unfamiliar device joined their home network. She named it Daylight.
Grace asked why.
"Because hidden cameras depend on people forgetting to look back," Sophie said.
She offered the program free through libraries and senior centers. She never used Peter's story in the advertising. When a reporter asked whether the project was her way of forgiving him, Sophie said, "It is my way of making his choices less useful to the next person."
The first year, Daylight flagged more than a thousand unfamiliar devices across the county. Most of them were harmless β a neighbor's new thermostat, a visiting relative's phone, a smart speaker someone forgot they owned. But eleven of them weren't. Eleven led to real investigations, and three of those led to arrests. Sophie got a letter from the county's cybercrimes unit thanking her, and Grace framed it and hung it in the hallway, right where Peter's old photograph used to be.
"I didn't build it for them," Sophie told me when I saw it. "But I'm not sorry they noticed."
The archive recovered from Mia's closet eventually helped solve twelve burglaries. Property was returned where possible. Insurance companies reopened claims they had denied. Families whose alarms had mysteriously failed received compensation. Mrs. Shaw recovered her husband's medals from a storage unit one of the burglary crews had been using. She sent me a photograph after the police returned them. Underneath it, she had written a note:
"A house is not safe because the door stayed locked. It is safe when no stranger controls the key."
I placed that note beside the red-streaked fragment of the original panel. The investigators allowed me to keep a small section after the trial. It hangs in my garage. The paint is still bright.
Visitors sometimes ask why I display damaged equipment. I tell them it was the first part of the surveillance system anyone could see. The cameras were hidden. The contract clauses were buried. The network moved through encrypted signals. The burglary schedules sat behind passwords. But Grace's paint was visible from the street. It turned a private suspicion into a public event. Secrecy had been the operation's greatest protection. The red paint created witnesses, and once officers, firefighters, residents, and investigators were standing in the same driveway, Sentinel couldn't send one technician to remove the evidence and call the complaint a misunderstanding anymore.