The receptionist noticed my expression.
"Is something wrong?"
Before I could answer, a door opened behind the counter.
An elderly man walked into the reception area, leaning on a black cane.
He was thin, with white hair and a deeply lined face. His eyes were sharp despite his age.
"You're Robert Hale's boy?"
I stood.
"Yes."
He looked at the photograph in my hand.
Then he looked at my face.
"Well," he said quietly, "you've got his eyes."
"Did you know my father?"
"I knew him well enough."
"Did you know Thomas Vale?"
The old man nodded.
"Thomas came here more than once."
"Why?"
"Because he was looking for something."
"The original Briar Glen survey?"
The old man's expression changed.
"No," he said. "He wasn't looking for a survey."
He glanced toward the receptionist.
"Could you give us a moment?"
She nodded and disappeared into the back office.
The old man motioned for me to follow him.
We walked down a narrow corridor lined with locked doors. At the far end, he stopped beside a small office and unlocked it.
Inside, the room smelled of paper and dust. A desk stood beneath a window, and several filing cabinets lined the walls.
He closed the door.
"Your father came here two days before he died," he said.
My throat tightened.
"What?"
"He brought a box. Said it was important. Asked me to keep it somewhere safe."
"What's in it?"
"I don't know."
"Where is it?"
The old man looked at me for a long moment.
"That's the problem."
"What do you mean?"
"It was collected."
"By whom?"
"Your father came back a week later. He said he needed the box returned. But before I could find it, someone else arrived with authorization from the county."
"Who?"
"Thomas Vale."
I stared at him.
"Thomas took the box?"
"No. He said he was there to make sure nobody else could."
"Did he?"
The old man shook his head.
"By the time he arrived, the box was gone."
I felt a cold knot form in my stomach.
"Where did it go?"
"I never found out."
"Did you tell the police?"
"Your father asked me not to."
"Why?"
The old man lowered himself into the chair behind the desk.
"Because he believed the police had already been told what to look for."
I sat opposite him.
"Did my father say he was in danger?"
The old man looked down at his hands.
"He said if anything happened to him, I should remember one thing."
"What?"
The old man lifted his eyes.
"He said the water line was never connected to the city."
I frowned.
"What does that mean?"
"It means the official plans were wrong. The chamber wasn't connected to the municipal supply. It was connected to something else."
"Something else?"
The old man nodded.
"An old industrial drainage tunnel. It ran beneath the development before Harrow ever bought the land."
I thought about my father's notebook.
The chamber was never the only danger.
"Where does the tunnel lead?"
The old man opened a drawer and removed a yellowed map.
He unfolded it on the desk.
The drawing showed the original landscape before Briar Glen had been built. Several drainage channels crossed the property. One ran beneath the area where my house now stood.
It continued beyond the neighborhood, passing under an abandoned factory site on the eastern edge of town.
At the bottom of the map, my father had drawn a small circle.
Beside it were two words.
SECOND ACCESS.
"Where is this?" I asked.
The old man tapped the map.
"Under the old pumping station."
I looked at him.
"Is it still there?"
"Most of it. The building was demolished, but the underground access remains."
"Who knows about it?"
He folded the map carefully.
"Your father. Thomas Vale. Martin Cole."
"And Denise?"
The old man didn't answer.
He didn't need to.
I returned home just before sunset.
The house looked exactly as it had when I left. The curtains were drawn, the driveway was empty, and the pool remained a dark rectangle behind the fence.
But I no longer saw it as an abandoned swimming pool.
I saw it as an entrance.
An entrance to something that had been hidden for decades.
I placed the old map on the kitchen table and studied the route from my property to the abandoned pumping station.
The tunnel passed beneath three residential streets, crossed a narrow strip of public land, and ended near the remains of an industrial building.