The brass key to safe deposit box number 214 had a tiny, jagged scratch on its bow shaped like a miniature arrow. I noticed it as I handed the key to Clara Mercer, who had been running the branch since my children were in diapers.

Clara took the key, her thick reading glasses hanging from a beaded chain around her neck. She led me past the low security gate into the small vault room, where the overhead fluorescent bulb gave off a dry, high-pitched hum that made my ears itch.

Together, we inserted our keys into the lock of the long metal box. The dual mechanisms turned with a double click that echoed off the rows of steel drawers. Clara slid the box out, her movements slow and deliberate, before she stepped back to give me privacy.

Inside the box, resting on top of three yellowing land deeds from the late seventies, sat a single, heavy leather pouch. It was secured with a brass zipper that had grown stiff with age, smelling faintly of dried paper and copper polish.

By one o’clock, the pouch lay on the white tablecloth of my dining room. My brother, Raymond, sat opposite me, his fingers already tapping the glass of his watch with a quick, nervous rhythm.

“Just open it, Evelyn,” Raymond said, his voice clipped and dry. “We have the probate filing deadline next month, and the court needs the exact valuation by Friday.”

I pulled the zipper back, the brass teeth resisting before they parted. Inside the worn leather, wrapped in a single strip of plain brown cardboard, was a thick stack of United States currency.

Raymond stopped tapping his watch. He reached into the pouch and pulled the stack out, his breath catching in his throat for a second before he spread the bills across the white cloth like a deck of cards.

“They are all hundreds,” Raymond said, his eyes scanning the green pile. “Four bundles of ten thousand. But look at this corner.”

He held up a bill, pointing a blunt finger at the margin beside Benjamin Franklin’s portrait. A tiny, violet ink stamp shaped like an arrow was pressed clearly into the paper, accompanied by two hand-stamped initials, L. T.

“Almost every single one of these has been stamped,” Raymond said, his words tripping over each other. “Who defaces forty thousand dollars in cash?”

I slid my silver wedding band up and down my knuckle, a habit that always seemed to quiet my mind when Raymond started to spin himself into a knot. The room was silent except for the low hum of my refrigerator from the kitchen.

“You brought these home from the bank,” Raymond said, leaning over the table. “Did you swap these out, Evelyn? Is this some trick to tie up the estate while you sort out your own bills?”

“I did no such thing,” I said, speaking slowly to keep the anger out of my voice. “These markings do not look like ordinary wear and tear, mind you.”

I took the bill from his hand and walked to the dining room window, holding the green paper against the autumn light that filtered through the yellowing oak trees outside. The watermark of the security thread was visible, running straight and true down the left side.

“It is real currency, Raymond,” I said, turning back to the table. “The paper is genuine.”

“Then someone used our father for money laundering,” Raymond said, his voice rising as he stood up. “We cannot deposit this. The state will freeze everything.”

By four o’clock, we were back in the lobby of Shelby County Trust, sitting at a low mahogany desk near the teller counter. Clara Mercer held one of the bills under a heavy magnifying glass, her head tilted as she studied the violet arrow.

She took off her glasses, pulling a blue microfiber cloth from her pocket to polish the thick lenses with small, circular motions. Her whisper was barely audible over the hum of the old desktop computer on her desk.

“The paper and the engraving are official, Evelyn,” Clara whispered, looking at me with a soft, tired expression. “But these stamps are unusual.”

“Can we deposit them today?” Raymond asked, interrupting before she could finish. “We need the electronic transfer initiated by tomorrow morning.”

Clara shook her head slowly, placing the magnifying glass back on her blotter.

“I cannot accept these for deposit without verification from the regional compliance office,” Clara whispered.

I looked at the stack of bills on her desk, the violet arrows pointing toward the margins, feeling the weight of my father’s mysteries.

The next morning at nine o’clock, I sat in Clara’s office at Shelby County Trust.

The hum of the old desktop computer from 2012 was the loudest sound in the small room.

Clara took off her thick reading glasses, revealing the pale, tired skin around her eyes.

She polished them with her blue microfiber cloth, her movements slow and deliberate.

“I went back through the transaction records from the 1980s, Evelyn,” Clara whispered.

“Did you find any domestic cash deposits matching that sum?” I asked.