"One more thing."

"What?"

"Innocent men don't run, Shauna. Your boy Beck? Hundred to one he killed Rebecca Schayes."

"You're on," Shauna said. "And one more thing for you too, Hester. You say one word against Beck, and they'll need a soup ladle to bury your remains. We clear?"

Hester didn't reply. She took another step away from Shauna. And that was when the gunfire ripped through the air.

I was in mid-crouch, crawling down a rusted fire escape, when the sound of the gunfire nearly made me topple over. I flattened myself on the grated walk and waited.

More gunfire.

I heard shouts. I should have expected this, but it still packed a wallop. Tyrese told me to climb out here and wait for him. I had wondered how he planned on getting me out. Now I was getting some idea.

A diversion.

In the distance, I heard someone shouting, "White boy shooting up the place!" Then another voice: "White boy with a gun! White boy with a gun!"

More gunfire. But – and I strained my ears – no more police radio static. I stayed low and tried not to think much. My brain, it seemed, had short-circuited. Three days ago, I was a dedicated doctor sleepwalking through my own life. Since then, I had seen a ghost, gotten emails from the dead, had become a suspect in not one but two murders, was on the run from the law, had assaulted a police officer, and had enlisted the aid of a known drug dealer.

Heck of a seventy-two hours.

I almost laughed.

"Yo, Doc."

I looked down. Tyrese was there. So was another black man, early twenties, only slightly smaller than this building. The big man peered up at me with those sleek up-yours sunglasses that fit perfectly with his deadened facial expression.

"Come on, Doc. Let's roll."

I ran down the fire escape stairs. Tyrese kept glancing left and right. The big guy stood perfectly still, his arms folded across his chest in what we used to call the buffalo stance. I hesitated before the last ladder, trying to figure out how to release it so I could reach the ground.

"Yo, Doc, lever on the left."

I found it, pulled, and the ladder slid down. When I reached the bottom, Tyrese made a face and waved his hand in front of his nose.

"You ripe, Doc."

"I didn't have a chance to shower, sorry."

Tyrese did a quick-walk through the back lot. I followed, having to do a little run to keep up. The big man glided behind us in silence. He never moved his head left or right, but I still got the impression he didn't miss much.

A black BMW with tinted windows, a complicated antenna, and a chain frame on the back license plate was running. The doors were all closed, but I could feel the rap music. The bass vibrated in my chest like a tuning fork.

"The car," I said with a frown. "Isn't it kind of conspicuous?"

"If you five-oh and you looking for a lily-white doctor, where would be the last place you look?"

He had a point.

The big guy opened the back door. The music blared at the volume of a Black Sabbath concert. Tyrese extended his arm doorman-style. I got in. He slid next to me. The big guy bent into the driver's seat.

I couldn't understand much of what the rapper on the CD was saying, but he was clearly pissed off with "da man." I suddenly understood.

"This here is Brutus," Tyrese said.

He meant the big-guy driver. I tried to catch his eye in the rearview mirror, but I couldn't see them through the sunglasses.

"Nice to meet you," I said.

Brutus didn't respond.

I turned my attention back to Tyrese. "How did you pull this off?"

"Coupla my boys are doing some shooting down a Hundred Forty-seventh Street."

"Won't the cops find them?"

Tyrese snorted. "Yeah, right."

"It's that easy?"

"From there, yeah, it's easy. We got this place, see, in Building Five at Hobart Houses. I give the tenants ten bucks a month to stick their garbage in front of the back doors. Blocks it up, see. Cops can't get through. Good place to conduct bidness. So my boys, they pop off some shots from the windows, you know what I'm saying. By the time the cops get through, poof, they gone."

"And who was yelling about a white man with a gun?"

"Couple other of my boys. They just running down the street yelling about a crazy white man."

"Theoretically, me," I said.

"Theoretically," Tyrese repeated with a smile. "That's a nice big word, Doc."

I laid my head back. Fatigue settled down hard on my bones. Brutus drove east. He crossed that blue bridge by Yankee Stadium – I'd never learned the bridge's name – and that meant we were in the Bronx. For a while I slumped down in case someone peered into the car, but then I remembered that the windows were tinted. I looked out.

The area was ugly as all hell, like one of those scenes you see in apocalyptic movies after the bomb detonates. There were patches of what might have once been buildings, all in various states of decay. Structures had crumbled, yes, but as though from within, as though the supporting innards had been eaten away.

We drove a little while. I tried to get a grip on what was going on, but my brain kept throwing up roadblocks. Part of me recognized that I was in something approaching shock; the rest of me wouldn't allow me even to consider it. I concentrated on my surroundings. As we drove a little more – as we dove deeper into the decay – the habitable dwellings dwindled. Though we were probably less than a couple of miles from the clinic, I had no idea where we were. Still the Bronx, I guessed. South Bronx probably.

Worn tires and ripped mattresses lay like war wounded in the middle of the road. Big chunks of cement peeked out from the high grass. There were stripped cars and while there were no fires burning, maybe there should have been.

"You come here much, Doc?" Tyrese said with a small chuckle.

I didn't bother responding.

Brutus pulled the car to a stop in front of yet another condemned building. A chain-link fence encircled the sad edifice. The windows had been boarded over with plywood. I could see a piece of paper glued to the door, probably a demolition warning. The door, too, was plywood. I saw it open. A man stumbled out, raising both hands to shield his eyes from the sun, staggering like Dracula under its onslaught.

My world kept swirling.

"Let's go," Tyrese said.

Brutus was out of the car first. He opened the door for me. I thanked him. Brutus stuck with the stoic. He had the kind of cigar store-Indian face you couldn't imagine – and probably wouldn't ever want to see – smiling.

On the right, the chain-link had been clipped and pulled back. We crouched through. The stumbling man approached Tyrese. Brutus stiffened, but Tyrese waved him down. The stumbling man and Tyrese greeted each other warmly and performed a complicated handshake. Then they went their separate ways.

"Come in," Tyrese said to me.

I ducked inside, my mind still numb. The stench came first, the acid smells of urine and the never-mistaken stink of fecal matter. Something was burning – I think I knew what – and the damp yellow odor of sweat seemed to be coming from the walls. But there was something else here. The smell, not of death, but of predeath, like gangrene, like something dying and decomposing while still breathing.

The stifling heat was of the blast furnace variety. Human beings – maybe fifty of them, maybe a hundred – littered the floor like losing stubs at an OTB. It was dark inside. There seemed to be no electricity, no running water, no furniture of any sort. Wood planks blocked out most of the sun, the only illumination coming through cracks where the sun sliced through like a reaper's scythe. You could make out shadows and shapes and little more.

I admit to being naive about the drug scene. In the emergency room, I'd seen the results plenty of times. But drugs never interested me personally. Booze was my poison of choice, I guess. Still, enough stimuli were getting through that even I could deduce that we were in a crack house.