“I need to run an errand,” I said.

“Keep the chain on until I knock three times on the door.”

“Are we going home today, Mom?” she asked.

“Not today,” I said.

“There are two granola bars in the brown paper bag next to the TV.

Drink the bottled water.

Don’t open the door for housekeeping or for anybody else.”

I parked two blocks from our house and walked the rest of the way under the bare oak trees.