“You must be his sister,” the woman said, holding a little girl with a dimple I recognized instantly.

I stood on the porch of 42 Birch Court, my boots cold against the concrete. I was holding a white envelope that had been delivered to my house by mistake that morning.

My name is Ellen, and I had been married to Dennis for 34 years. Thirty-four years of quiet, steady, ordinary life. Or so I had believed until five minutes ago.

Dennis drove a furniture delivery route. He left every Monday morning at 5 AM and came home every Friday evening at 6 PM. He was always tired, smelling of diesel fuel and old cardboard. I took care of the house, weeded the garden, and drove our old Buick until the rust ate through the passenger door.

We lived a frugal life. We had to, Dennis always said. He told me his truck insurance was $1,200 a month. It was a massive expense, but he insisted it was the price of being an independent contractor. I never questioned it. I trusted him with everything. We had two adult children, Mark and Sarah, who had grown up and moved to Chicago. We were supposed to be planning our retirement.

Then came Friday morning. The mail carrier must have been new. I found an envelope in our mailbox at 42 Birch Lane. It was addressed to Margaret Patterson at 42 Birch Court. I figured it was just a simple mistake. Birch Court was a new development just three miles away, on the other side of the highway.

I decided to drive it over myself. It was a sunny October morning, and I remember the smell of dry leaves in the air. I turned onto Birch Court, looking for number 42.

And then my brain just stopped working.

There, parked in the driveway of a neat yellow colonial house, was Dennis’s delivery truck.

The big white box truck with the scuffed bumper I had helped him wash a hundred times.

I parked my Buick on the street. My legs felt heavy, like they were filled with wet sand. I walked up the driveway. My hands were shaking so badly the paper envelope rustled in my grip. I rang the bell.

A young woman opened the door. She was in her early thirties, wearing a gray sweatshirt. In her arms, she held a little girl, maybe 3 years old.

And then I saw the child’s face.

She had the exact same chin as Dennis. The deep, off-center dimple that our son Mark had inherited. My stomach turned completely over.

“Can I help you?” the woman asked. She looked at me, then at the envelope in my hand. “Oh, is that my dental reminder? The postman always mixes us up with Birch Lane.”

I couldn’t breathe. My throat was so tight I could barely swallow.

“You must be his sister,” she said, offering a warm, innocent smile. “Dennis told me his sister lived somewhere in the county, but we have never met.”

“I’m his wife,” I said.

The silence that followed was heavy and cold. The young woman’s smile didn’t just fade, it vanished. Her face went completely white. She looked at me, then down at my hand, where my gold wedding band sat plain against my skin.

“What?” she whispered.

She stepped backward into the hallway, leaving the front door wide open. I followed her inside. I didn’t ask for permission. I just walked in.