Once I pull this battery, it’s a dumb lock.

It can’t be opened with an app, because it won’t have a brain to open with.”

“And the codes?” I asked.

“Gone, ma’am.

There’s no memory left to hold them.”

That was the sentence I had been waiting for since Tuesday, so I looked at the maple until my face behaved.

Marcus handed me two keys on a wire ring and told me the bolt threw an inch and a quarter into the frame.

He wiped his hands on his jeans and said the door would hold against a shoulder now, not that anybody was going to try it.