“It wasn’t much like the rest of Mississippi. Better in a lot of ways. More liberal, the people more educated. But in a way that made the things that happened there worse. You know? Because there were people there who knew better.”

Stone goes to the stove and returns with the coffeepot, talking as he refills our cups. “When I was assigned to that case, I was only a couple of years younger than Payton was when he died. I had a wife and two kids, and I still had a few illusions. That case knocked them right out of me.”

He sets the empty pot on the stone hearth of his fireplace and takes his chair. “Do you have any illusions left, Mr. Cage?”

“Not many.”

He studies me as if judging the truth of my statement.

Caitlin takes this chance to jump in. “How do you feel personally about J. Edgar Hoover?”

Stone examines his fingernails, a seemingly casual gesture calculated to hide inner turmoil. “I don’t care if the man wore Frederick’s of Hollywood to bed every night. I don’t care if he wanted to marry Clyde Tolson, that pompous ground squirrel. But the man presented himself to this nation as a paragon of law and order. A champion of right. And the son of a—” Stone winces like Humphrey Bogart—“the man didn’t know the meaning of the words. He stole from the government, misused agents for personal gain, colluded with mobsters, broke the securities laws. . . . Human beings just weren’t meant to have that much power. Jesus, I need a drink.”

“Go right ahead.” It’s barely two p.m., but I feel like I could use one too.

Stone shakes his head. “Four months sober. It’s a daily battle.”

Watching him get control of his craving is like watching a man fight a malarial fever. As a younger man Dwight Stone did what most Americans never do—peered behind the curtain at the men running the machine—and he is a different man because of it. America isn’t the same country now, of course. It’s better in a lot of ways. But I can see how this wouldn’t matter to Stone. We are, all of us, men of our own eras.

“You want to destroy Leo Marston?” he asks, his eyes hard.

The name flows easily from his lips. He has thought about Marston since 1968. “Do you think that’s possible?”

“Put it this way. I think it’s a noble goal.”

Caitlin presses her knee hard against mine. I can feel her excitement, but I don’t look at her. It’s suddenly as clear to me as the mountain air outside Stone’s cabin: the man sitting across from us knows who killed Del Payton, and why, and probably why that knowledge was never made public.

“But it won’t be easy,” he adds.

“That’s what someone else told me.”

“Who?”