I was burned all over my body after saving my little sister from a house fire when she was ten. Years later, I came to her wedding in a wheelchair, and she whispered, “Go sit in the back. You’re ruining my perfect wedding.” Then the groom’s mother stood up and said five words that froze everyone.

To understand the poison that had just spilled across the aisle of St. Michael’s, one had to smell the pine and kerosene of a dry August night in 2012.

I was seventeen. Emily was ten.

We lived in a two-story colonial on the outskirts of Summerville, surrounded by sweetgum trees and loblolly pines. That summer had been brutal, the kind of heat that dried the grass to tinder and made the floorboards groan underfoot.

My father had been working late at the firm. My mother had taken a sleeping pill after two glasses of Chardonnay. I was downstairs in the kitchen, finishing an essay on American history, when the sound began. It wasn't the piercing shriek of a smoke detector—the batteries had been taken out of the hallway alarm three weeks prior because of false alarms from burnt toast and never replaced. It was a low, rhythmic roaring, like an idling freight train in the walls.

By the time I reached the bottom of the stairs, the living room ceiling was already bleeding black smoke.

An electrical short behind the entertainment center had ignited the dry paneling. It traveled up the interior cavity of the walls with horrifying speed. I ran to my parents' bedroom on the ground floor, pounding on the door, screaming until my mother stumbled out in her nightgown, disoriented and coughing. I shoved her through the back patio door into the cool night air, running around to the front yard where my father had just pulled into the driveway.

"Where is Emily?" my father yelled over the crackle of breaking glass.

"Upstairs!" my mother wailed, falling to her knees on the lawn. "She’s in her bedroom! Oh God, Mark, do something!"

My father took two steps toward the front porch. A second-story window blew outward in a shower of orange sparks and shattered glass. The heat rolled across the yard like a physical fist. My father stopped. He was a grown man, six feet tall, broad-shouldered, a former college athlete. He took three steps back, put his hands on his head, and began to cry.

*Firefighters are eight minutes away,* a voice whispered in the back of my skull. *She will be dead in three.*

I didn't think about courage. Courage implies a choice made after weighing consequences. There was no calculus. There was only the image of ten-year-old Emily, who slept with a white plush rabbit named Barnaby and cried whenever it thundered.

I grabbed the garden hose, sprayed my cotton sweatshirt until it was soaked, wrapped it over my face, and threw myself through the front door.

Hell has no imagination compared to a burning house.

The heat inside stripped the moisture from my eyeballs instantly. The air was not air; it was a caustic soup of vaporized polyurethane, burning carpet, and carbon monoxide. The stairs were already groaning, the carpet runners melting into sticky tar that pulled at my sneakers.

I crawled. On your hands and knees, there is a four-inch ribbon of survivable air above the floorboards. I climbed the stairs on my belly, feeling the treads burning through the denim of my jeans.

"Emily!" I tried to scream, but the air scorched my vocal cords, turning my voice into a wet rasp.

I found her in the corner of her bedroom. The ceiling above her bed had collapsed in a heap of blazing fiberglass and lath. She had wedged herself between her vanity and the wall, clutching Barnaby to her chest, her eyes rolled back, slipping into unconsciousness from smoke inhalation.

The doorway behind me caught fire. The header collapsed, sealing the exit with a curtain of falling rafters.

There was only one way out: the master bedroom on the other side of the hall, which had a balcony overlooking the swimming pool.

I pulled Emily out from behind the vanity. I was seventeen, skinny, but adrenaline is a strange, demonic chemical. I hoisted her beneath me. I didn't carry her in my arms; I shielded her. I placed her small, frail body against the floor, laid my entire torso over her like a turtle's shell, and began to crawl down the blazing hallway.

That was when the roof beam gave way.

It did not hit me with a blunt strike; it came down like an avalanche of molten iron. It struck across my shoulder blades, pinned my lower spine, and spilled burning pitch and ceiling insulation down my neck, my arms, and the left side of my face.

The smell of your own flesh burning is something your brain tries desperately to reject. It smells sweet, nauseatingly rich, like roasting pork left too long in an oven. I screamed, and when I screamed, I inhaled the superheated gas. The fire seared my trachea, burning away the cilia, blistering my lungs.

*Move,* I told myself. *If you die here, she dies under you.*

I shoved the blazing timber off my back with my bare hands. The skin of my palms remained stuck to the charred wood when I pulled away. I dragged Emily inch by inch into the master bedroom. I kicked the French doors open with my blistered heels, pulled her onto the stone balcony, and with the last ounce of strength in my ruined tendons, I lifted her over the railing and dropped her into the deep end of the swimming pool twelve feet below.