The explosion happened on a Tuesday. It tore the sky open like a cheap shirt, raining glass and screaming metal onto Main Street. I was in the breakroom. I was drinking coffee. The mug was white with a blue rim. It was a standard-issue mug. The kind you get from the office supply store when you order two hundred. I held it in my left hand. My right hand was empty.

The glass shattered the window. It didn’t break inward. It burst outward. I saw the shards fly. I saw the sky turn pink for a second. Then the noise came. It was a sound like the world being crushed in a vice. I dropped the mug. It hit the linoleum. The coffee spread. It was a dark, wet circle.

I didn’t run. My legs were heavy. They were made of lead. Or maybe they were just dead. I walked to the door. The door was jammed. I pushed. It wouldn’t budge. The smoke was thick. It tasted like burnt hair and ozone. I coughed. My eyes watered. I could see nothing.

Then I heard a voice. It was calm. It was steady.

"Stay put," the voice said. "Do not move."

I knew the voice. It was Mr. Halloway. He was the security guard. He was old. He wore a uniform that was too large for him. The sleeves hung down past his wrists. He had a badge on his chest. It was gold. It caught the little light that still came through the broken window.

"Mr. Halloway?" I called out. My voice was a whisper. It was gone.

"Quiet," he said. "I am coming to you. Do not open the door. The pressure change will suck the air out of your lungs. You will die. I am coming."

I waited. The smoke got thicker. It was like breathing through a wet towel. My head throbbed. I leaned against the door. It was hot. It was burning my hand. I pulled back. The pain was sharp. It was a bright, clear pain. It was the only thing that felt real.

I thought about my apartment. I thought about the cat. I hadn’t fed the cat. He was hungry. He was a tabby. He had a limp in his left front leg. I missed him. I missed him more than I missed anything else. I missed him so much it hurt.

The door opened. It opened slowly. Like a coffin lid.

Mr. Halloway stood there. He was holding a fire extinguisher. He was not using it. He was holding it by the handle. His face was pale. His eyes were wide. He looked at me. He looked at the coffee on the floor. He looked at the blue-rimmed mug.

"The mug," he said.

I looked down. The mug was whole. It was sitting in the coffee. It was untouched. The blue rim was perfect.

"Take it," Halloway said. "Take the mug. It is the only clean thing in here."

I didn’t move. I didn’t understand. Why the mug? Why not the extinguisher? Why not the fire hose that was coiled in the corner?

"Halloway," I said. "Why?"

"Because it is yours," he said. "You are holding it. You are holding it with your left hand. You are not letting go. That is the only thing you are not letting go of."

I looked at my hand. I was not holding the mug. The mug was on the floor. My hand was open. My fingers were curled. They were empty.

"I am not holding it," I said.

"You are," he said. "You are holding the idea of it. You are holding the memory of it. You are holding the routine. You are holding the normal. And the normal is dead. The normal is burning."

He stepped into the room. He moved carefully. His boots made a soft sound on the wet floor. He walked to the door. He looked back at me.

"Come," he said. "We have to go. The building is going to collapse. You have five minutes. Maybe three."

I stood up. My legs worked. They felt strange. They felt light. I followed him. We walked out of the breakroom. We walked down the hallway. The walls were shaking. Dust fell from the ceiling. It was like snow. It was gray snow.

We reached the stairwell. The stairs were dark. We went down. One step. Two steps. Three steps. The air was cleaner. It was cold. It smelled like stone.

At the bottom of the stairs, Halloway stopped. He looked at me. He held up his hand. He was holding something. It was small. It was gold.

It was his badge.

He took it off his uniform. He held it out to me.

"Take it," he said.

I didn’t take it.

"Take it," he said again. "It is heavy. It is gold. It is worth something. It will buy you a new mug. It will buy you a new life."

I looked at the badge. It was shiny. It was perfect. It was the only thing that hadn’t been broken.

"I don't want it," I said.

"You must," he said. "It is the only thing that matters. It is the proof. It is the justice."

"I don't want justice," I said. "I want my cat."

Halloway smiled. It was a sad smile. It was a tired smile.

"Your cat is dead," he said. "The building next door collapsed. The fire spread. Your cat is dead."

I felt a punch in my stomach. It was a physical blow. I doubled over. I gasped for air.

"I didn't know," I said.

"You didn't know," he said. "That is the point. You didn't know. You were in the breakroom. You were drinking coffee. You were safe. And now you are not safe. And the mug is not safe. And the cat is not safe. And the world is not safe."

He put the badge on the floor. It clinked against the concrete.

"Leave it," he said.

I looked at the badge. It lay there. It was a small, golden eye. It stared up at me.

"I am going to stay here," Halloway said.

I looked at him.

"Stay?" I said.

"Yes," he said. "I am going to stay here. I am going to wait. I am going to watch. I am going to witness."

"Watch what?" I said.

"Watch the end," he said. "Watch the building fall. Watch the dust settle. Watch the silence. That is my job. I am the witness. I am the guard. I guard the truth. And the truth is that we are all alone. And the truth is that the gold is worth nothing. And the truth is that the mug is just a mug."

I looked at the badge again. I knelt down. I picked it up. It was warm. It was heavy.

"I will keep it," I said.

Halloway nodded. He turned around. He sat down on the concrete floor. He leaned against the wall. He closed his eyes.

"I will keep it," I said again.

I stood up. I walked to the exit. The door was open. The sunlight was blinding. It was white. It was hot. It was alive.

I stepped out. The air hit my face. It was clean. It was cool.

Behind me, the building groaned. It was a deep, low sound. It was like a whale dying.

I looked back. I saw Halloway. He was still sitting there. He was still watching.

I walked away. I walked down the street. The street was empty. The cars were parked. The shops were closed. The world was quiet.

I walked to the park. I sat on a bench. I held the badge in my hand. I turned it over. I looked at the engraving. It said: Security.

I put the badge in my pocket. I felt the weight of it. It was a small, cold weight. It was a heavy weight.

I looked at my hands. They were clean. They were empty.

I thought about the mug. I thought about the blue rim. I thought about the coffee.

I closed my eyes. I waited for the building to fall.

It did not fall.

The sound stopped. The dust settled. The silence came.

I opened my eyes. The sun was high. The birds were singing. A woman was walking a dog. The dog was barking. The world was going on.

I stood up. I walked to the trash can. I took the badge out of my pocket. I looked at it one last time.

I dropped it in the trash can.

It clinked against the plastic lid.

I walked home. I walked to my apartment. The door was open. The windows were broken. The furniture was gone. The cat was gone.

I sat on the floor. I sat in the dust.

I was alone.

I was free.

I was nothing.

The gold was gone. The mug was gone. The cat was gone. The building was gone.

I was here.

I was breathing.

I was alive.

And that was enough.

That was nothing.

That was everything.

I picked up a shard of glass from the floor. It was small. It was sharp. It was clear.

I held it up to the light.

It was beautiful.

I put it in my pocket.

I went to sleep.