It was the brass key. It had a faded strip of blue electrical tape wrapped around the top, exactly like he said.

I drove to First National Bank on Monroe Street. My knees felt weak as the bank employee led me down into the vault.

The air down there was cool and quiet. When she slid the heavy metal box onto the table and closed the door to give me privacy, my chest felt so tight I could barely draw a breath.

I inserted the key. It turned with a heavy, satisfying click.

I lifted the lid. Inside were neat, thick stacks of hundred-dollar bills, bound in white paper bands. It was more money than I had ever seen in my life. But resting right on top of the money was a small, glossy photograph.

I picked it up, expecting to see a stranger. Instead, I froze. My eyes refused to process what they were seeing.

It was a photo of a man standing in front of a blue Ford pickup truck, smiling. He had a dog on a leash. It was David. But I didn’t know him as David from Missouri.

I knew him as Marcus. He was my best friend Sarah’s husband.

Sarah and I had been inseparable since college. We shared recipes, cried over bad breakups, and she had stood right next to me at my own wedding. Six years ago, she met “Marcus” online. He was from out of town, a quiet guy who worked in logistics. They got married in a small backyard ceremony, and I was her maid of honor.

I stared at the photo until my vision went blurry. My father’s secret son was married to my best friend. And they lived in a beautiful, newly renovated home in the suburbs of Toledo, a home they claimed they bought with a small inheritance from Marcus’s grandmother.

I sat in that bank vault for an hour, my mind spinning. Did Sarah know? Had she been lying to me this whole time?

I walked out of the bank without touching the money. I locked the box, pocketed the key, and got into my car. My hands were wet with sweat on the steering wheel. I dialed Sarah’s number.

“Hey, Ellen,” she answered, her voice warm and normal. “How are you holding up? I was just thinking about your mom.”

“Sarah, I need you to meet me at the Big Boy on Secor Road,” I said. I didn’t sound like myself. My voice was dangerously calm.

“Sure, is everything okay? You sound weird.”

“Just meet me there in twenty minutes.”

I sat in a vinyl booth, staring at a cup of black coffee I didn’t touch. When Sarah walked in, she looked bright and cheerful, wearing a yellow sweater. She slid into the booth across from me, her face instantly dropping when she saw my expression.