“Hey, don’t, man, don’t,” he whispered, his eyes wide. I brought my knee up hard into his groin and he fell down heavily on his knees as I locked the door behind us. He tried weakly to rise and I hit him hard in the face. I brought the gun close to his head again.

“Don’t say a word. Turn your back to me.”

“Please, man, don’t.”

“Shut up. Turn.”

He inched slowly round on his knees. I pulled his jacket down over his arms and then cuffed him. From my other pocket I took a rag and a roll of duct tape. I stuffed the rag in his mouth and wrapped the tape around his head two or three times. Then I pulled him to his feet and pushed him down on to the toilet. His right foot came up and caught me hard on the shin and he tried to push himself up, but he was off balance and I hit him again. This time he stayed down. I held the gun on him and listened for a moment in case anyone came to see what the noise was. There was only the sound of a toilet flushing. No one came.

I told Johnny Friday what I wanted. His eyes narrowed as he realized who I was. Sweat poured from his forehead and he tried to blink it from his eyes. His nose was bleeding slightly and a thin trickle of red ran from beneath the duct tape and rolled down his chin. His nostrils flared as he breathed heavily through them.

“I want names, Johnny. Names of customers. You’re going to give them to me.”

He snorted in disdain and blood bubbled from a nostril. His eyes were cold now. He looked like a long, black snake with his slicked-back hair and slitted, reptilian eyes. When I broke his nose they widened in shock and pain.

I hit him again, once, twice, hard blows to the stomach and head. Then I pulled the tape down hard and dragged the bloodied rag from his mouth.

“Give me names.”

He spat a tooth from his mouth.

“Fuck you,” he said. “Fuck you and your dead bitches.”

What happened after is still not clear to me. I remember hitting him again and again, feeling bone crunch and ribs break and watching my gloves darken with his blood. There was a black cloud in my mind and streaks of red ran through it like strange lightning.

When I stopped, Johnny Friday’s features seemed to have melted into a bloody blur. I held his jaw in my hands as blood bubbled from his lips.

“Tell me,” I hissed. His eyes rolled toward me, and like a vision of some craggy entrance to Hell, his broken teeth showed behind his lips as he managed one last smile. His body arched and spasmed once, twice. Thick black blood rolled from his nose and mouth and ears, and then he died.

I stood back, breathing heavily. I wiped my blood-spattered face as best I could and cleaned some of the blood from the front of my jacket, although it hardly showed against the black leather and my black jeans. I took the gloves from my hands, stuffed them in my pocket, and then flushed the toilet before peering carefully out and pulling the door closed behind me as I left. Blood was already seeping out of the stall and pooling in the cracks between the tiles.

I realized that the noise of Johnny Friday’s dying must have echoed around the washroom but I didn’t care. As I left I passed only an elderly black man at the urinals and he, like a good citizen who knows when to mind his own business, didn’t even glance at me. There were other men at the sinks, who gave me a cursory look in the mirror. But I noticed that the old man was gone from his glass cubicle and I ducked into an empty departure gate as two cops came running toward the washroom from the upper level. I made my way to the street through the ranks of buses beneath the station.

Perhaps Johnny Friday deserved to die. Certainly no one mourned his passing and the police made little more than a cursory effort to find his killer. But there were rumors, for Walter, I think, had heard them.

But I live with the death of Johnny Friday as I live with the deaths of Susan and Jennifer. If he did deserve to die, if what he got was no more than he merited, yet it was not for me to act as his judge and executioner. “In the next life we get justice,” someone once wrote. “In this one we have the law.” In Johnny Friday’s last minutes there was no law and only a kind of vicious justice that was not for me to give.

I did not believe that my wife and child were the first to die at the hands of the Traveling Man, if that was who he was. I still believed that somewhere in a Louisiana swamp lay another and in her identity was the clue that would open up the world of this man who believed he was not a man. She was part of a grim tradition in human history, a parade of victims stretching back to ancient times, back to the time of Christ and before that, back to a time when men sacrificed those around them to placate gods who knew no mercy and whose natures they both created and imitated in their actions.

The girl in Louisiana was part of a bloody succession, a modern-day Windeby Girl, a descendant of that anonymous woman found in the fifties in a shallow grave in a peat bog in Denmark, where she had been led nearly two thousand years before, naked and blindfolded, to be drowned in twenty inches of water. A path could be traced through history leading from her death to the death of another girl at the hands of a man who believed he could appease the demons within himself by taking her life but who, once blood had been spilled and flesh torn, wanted more and took my wife and child.

We do not believe in evil anymore, only evil acts that can be explained away by the science of the mind. There is no evil and to believe in it is to fall prey to superstition, like checking beneath the bed at night or being afraid of the dark. But there are those for whom we have no easy answers, who do evil because that is their nature, because they are evil.

Johnny Friday and others like him prey on those who live on the periphery of society, on those who have lost their way. It is easy to get lost in the darkness on the edge of modern life, and once we are lost and alone, there are things waiting for us there. Our ancestors were not wrong in their superstitions: there is reason to fear the dark.

And just as a trail could be followed from a bog in Denmark to a swamp in the South, so I came to believe that evil, too, could be traced throughout the life of our race. There was a tradition of evil that ran beneath all human existence like the sewers beneath a city, that continued on even after one of its constituent parts was destroyed, because it was simply one small part of a greater, darker whole.

Perhaps that was part of what made me want to find out the truth about Catherine Demeter, for as I look back, I realize that evil had found its way to touch her life too and taint it beyond retrieval. If I could not fight evil as it came in the form of the Traveling Man, then I would find it in other forms. I believe what I say. I believe in evil because I have touched it, and it has touched me.