The humidity in the Delta doesn't weather you. It digests you.

I stood on the porch of the Beaumont mansion and felt it working on me, slow and patient as a stomach acid. The wood beneath my feet was old—old enough to remember when it was a tree, old enough to remember when trees meant something in this place. The air smelled of river mud and magnolia and something older still, something that had been buried and refused to stay buried.

Beauregard Beaumont IV waited for me in the study. He was two hundred and fourteen years old and looked seventy, which is to say he looked like a man who had learned to make peace with the fact that his body had become a museum of every decision he had ever made.

"Mr. Thibodeaux," he said. His voice was soft, the way a man's voice gets soft when he has spent a century learning that shouting never changes anything. "Sit down."

I sat. The chair groaned, which felt appropriate. Everything in this house groaned—the floorboards, the windows, the portraits of men who looked like Beaumont and his grandfather and his grandfather's grandfather, because in the Delta, family is not a line of descent. It is a shape that repeats.

"I have a job for you."

"I'm not a—"

"You are. You just don't call it that anymore. Your family called it something else. Thibodeaux men didn't kill for money. We killed for land. For rivers. For the right to decide who lived in our shadow and who lived in our darkness."

He was right. My grandfather had been a Thibodeaux. My father had been a Thibodeaux. And I had been the last Thibodeaux, because after the oil bust of the eighties, after the banks took everything, after the Delta swallowed my family the way it swallows everything—mud swallowing a dead cow, slow and without ceremony—I was left with a name and no name was worth anything in a world that had forgotten how to read old deeds.

"Three people," Beaumont said. "They refuse to accept their place. They refuse the gift we are offering them. And when the Visitors come—when the strangers from the sky come—they will tell the strangers that our standard of living is defined by the poorest among us. Do you understand?"

"I understand that you want me to kill three poor people."

"I want you to protect the Delta."

There is a difference, in theory. In practice, the bullet travels the same distance either way.

I found the first one in the underground tunnels beneath the Delta.

They called them the Underground River, though there was no water in them anymore. They had been built during the war—not the war the history books talk about, but the older war, the one that happened on this land before it had a name, when a man called Etienne and a woman called Marie dug tunnels with their hands and a spoon because the earth was the only thing their masters hadn't figured out how to own yet.

Mercy lived in one of those tunnels.

She was nineteen, Creole, small and dark and barefoot even though the ground was cold. She did not know who I was. She knew I was a threat—she could see it in the way I held myself, like a man carrying something heavy inside his jacket—but she did not seem afraid.

"Come in," she said, and she said it the way a hostess says come in to a guest, which made me feel like the intruder in my own story.

The tunnel was small—just big enough for a person to sit, lie down, and exist. A mattress. A small fire. A collection of bottles arranged on a shelf like a rosary. And on the walls, drawings. Charcoal sketches of the river, the trees, the sky above the place where the tunnel entrance was hidden beneath a tangle of cypress roots.

"Are you here to kill me?" she asked.

"Not yet."

"Good. I was about to offer you some tea."

She had no tea. She had water from a bucket and a leaf that she said was mint, though it didn't smell like any mint I had ever known. We drank it anyway.

"Why do you live down here?" I asked.

"Because the world above doesn't have a place for me." She said this without bitterness. It was a fact, like the weather. "My great-great-grandmother was a slave. She married a man who wasn't her master, which was illegal, which was dangerous, which was the best thing that ever happened to her. She had my great-great-grandfather in a tunnel. That's where our family started. In the dark."

"And you chose to continue the tradition?"

"I didn't choose anything. The Delta chose me. The Delta chooses everyone, eventually. It swallows you and spits you out or it swallows you and keeps you. I'm still being swallowed. That's enough for now."

I should have killed her then. The contract was clear. The money was in the account. Beaumont was waiting on his porch.

But I couldn't. Not because I had suddenly grown a conscience—I didn't have one. I had grown something worse. I had grown a memory.

I remembered my grandfather. Not the man he was, but the man he tried to be before the Delta took everything from him. He used to tell me stories about the river. About how it used to be wide and golden and full of fish. About how his grandfather had owned land on both sides of it. About how the Thibodeaux name used to mean something.

"Names mean nothing now," he had told me, the last time I saw him, lying in a hospital bed that cost money we didn't have. "But remember yours. Even if it doesn't mean anything, remember that it was yours."

I left Mercy alive. I told myself it was because she reminded me of someone I had loved once, long ago, in a life that belonged to someone else. That was partially true. The full truth was simpler and more complicated: Mercy had looked at me with eyes that saw through me, and in those eyes I had seen my own reflection, and it was not a face I wanted to carry into Beaumont's study.

I found the truth in the Beaumont family archives, buried in a room that smelled of mildew and old paper.

Beaumont was not what he claimed to be. He was not the pure-blooded scion of a centuries-old dynasty. He was the grandson of Etienne—the slave who had dug the tunnels with his hands. The Beaumont family had absorbed him, consumed him, turned him into themselves the way the Delta turns everything into mud.

Beaumont knew this. He had always known. And he had spent two hundred years building an empire on a foundation that was built on a lie.

I confronted him on the porch, as the sun went down and the river turned the color of old copper.

"You're not a Beaumont," I said.

"I am the Beaumont," he said. "I am every Beaumont. I am Etienne. I am Beauregard the First. I am the man who signed the deed and the man whose name was on the deed. I am all of them. I am the Delta."

"Then why kill people who have nothing?"

"Because they threaten everything I've built." His voice was calm, but his hands were shaking. "If the strangers come and find that some of our people have nothing, they will set the standard at nothing. And if the standard is nothing, then everything I have built—everything my family has built—was for nothing."

"Your family stole this land."

"Yes." He didn't flinch. "They stole it. I inherited it. The law says it's mine. The Delta says it's mine. The river runs through my property. The air I breathe comes from my trees. I am the owner of this place, and ownership is a heavy thing, Mr. Thibodeaux. It is heavier than you can imagine."

He stood up slowly, the two hundred years in his joints making every movement a negotiation. He went into the kitchen and came back with a pot of gumbo and a stack of bonds.

"Sit down," he said. "We haven't eaten."

We sat on the porch, the old man and the last Thibodeaux, and ate gumbo while Beaumont burned stock certificates under the silver basin to boil the broth. The flames were green and yellow, and they flickered across his face like the faces of all the people he had ever known, all the people he had ever destroyed, all the people he had ever needed.

"My grandfather stole your grandfather," he said quietly. "My father stole the river. I stole the world. But I know who I am. I know that I am a thief who inherited a throne. And I know that when the strangers come, they will see what I have built and they will judge me."

"What will you tell them?"

"I will tell them the truth. That I am the last owner of everything, and I am the poorest man who has ever lived."

I didn't kill him. I couldn't. Not because he was right—though he was—but because in his face, I saw the reflection of my own family's crime. The Thibodeaux hadn't been innocent. We had been the other side of the same coin. My grandfather had lost everything to Beaumont's father. My father had lost everything to Beaumont's banks. And I had lost everything to a name that meant nothing in a world that only recognized power.

We sat on the porch until the stars came out. The river flowed past, indifferent to our conversation, indifferent to our history, indifferent to the fact that two men from opposite sides of a two-hundred-year feud were sitting together, eating gumbo, watching the water move toward a sea they would never see.

"I will not do what you asked," I said finally.

Beaumont nodded. "I know."

"Then what will you do?"

He looked at the river. He looked at the sky. He looked at me with eyes that had seen three centuries of sunsets and had not grown tired of any of them.

"I will wait," he said. "The Delta always waits. And the Delta always wins."