“I don’t know,” John said carefully. “I’ve got solid recommendations, but I’ve never met them myself. Our main contact is a woman, name of Marvel. She’s a Marxist, I hear. That means she’s probably got her own agenda.”

“I thought Marxism was out of style,” I said.

John threw back his head and roared. “In the fuckin’ Delta? Listen, even when Marxism was in style, you could get lynched for laughing at Groucho and Zeppo, much less believing in Karl.”

We rolled into Longstreet after midnight, past a Holiday Inn, a Taco Bell, and a Dairy Queen, a row of white grain elevators, a few dark stores, and a lot of empty streets.

The Mississippi had been a presence all through the trip. We could sense it and sometimes smell it, but with the levee between the highway and the water, we couldn’t see it. Longstreet, though, was built on higher ground. As we came to the center of town, to the first traffic light, we climbed above the levee, and the river opened out below. A ramshackle marina, with a few bare white bulbs flickering on an overhead grid, sat at the bottom of the riverbank. A couple of runabouts, a dozen olive drab jon boats, and an aging houseboat swung off the T-shaped pier.

“You know where we’re going?” I asked.

“I’ve got directions,” he said, turning at the light. We crossed the business district, passed a well-lit town square with an equestrian statue at its center, and bumped across another set of railroad tracks. On the other side was a convenience store that looked like a collision between a chicken coop and a billboard. A hand-painted sign on the side of the store, red block letters on white, said E-Z WAY. Three tall light poles, the kind used to illuminate tennis courts and Little League baseball fields, lit up the parking lot. Every bug between Helena and Greenville swarmed around them.

“That’s where the kid bought the ice cream before he got shot,” John said. Through the open doors we could see a fat white man sitting on a dinette chair. He was mopping his face with a rag. John took a left around the E-Z Way and drove another six blocks on a potholed road past a clapboard Baptist church. Then he slowed and peered out the windshield toward the passenger side.

“It’s a green house with a porch and some potted flowers hanging from the eaves,” he said, half to himself. We rolled another hundred feet down the street. “There it is.”

The house was a concrete-block rambler with an overhanging roof, a small porch, and a picture window. Our headlights picked out a couple of pink metal lawn chairs crouched on the porch. John eased the car into a graveled parking strip. “You wait here. I’ll go up and ask,” he said.