And that’s when it happened.

And that’s when it happened.

Before my fingers touched the knob, Lily let out a high-pitched cry and lunged at me with a force that didn’t seem like hers. He pushed me back so sharply that my keys fell to the floor.

“No!” he shrieked. Don’t open it!

His voice bounced through the hall, and at that very moment I heard a metallic click from the other side of the door.

It did not come from the metal plate.

It came lower.

I froze.

Lily clung to my leg, shaking from head to toe. I could barely breathe. I looked down slowly at the bottom of the door, and then I saw it: an almost invisible thread, stretched at the lock and attached to something on the other side of the frame.

I felt a hole open in my stomach.

It wasn’t normal.

It was not improvised.

It was a trap.

I knelt down carefully, trying not to touch anything. The air suddenly tasted strange to me. Heavier. More chemical. As if underneath the smell of coffee and lemon cleaner there was something else… something sour, something that shouldn’t be there.

Gas.

I backed away suddenly.

Not much. Just one step. But it was enough for my brain to finally put the pieces together with terrible speed.

Derek had gone “on a trip”.

Lily had heard him say that it was going to happen today.

“Make sure it looks like an accident.”

The front door was ready.

And there was gas in the house.

I looked into the kitchen. The stove was off. But that meant nothing. It could come from somewhere else. From an open line. From the basement. From the heater. From anywhere I couldn’t see.

“My love, don’t touch anything,” I whispered, taking Lily by the shoulders. No switches. No lamps. Not your tablet. Nothing, yes?

She nodded with pursed lips.

My hand was already going towards the phone inside the bag when I stopped.

If there was enough gas, even a call could be a risk in there. I didn’t know if it was paranoia or instinct, but I wasn’t going to gamble my daughter’s life on appearing rational.

We needed to get out.

But not through the front door.

My eyes swept over the house. The dining room windows looked out onto the side garden. The sliding door from the living room went out to the terrace. The back door led to the small utility yard next to the garage.

Garage.

The garage was connected to the house.

And Derek’s car was gone.

Too many variables. Too much risk.

I crouched down until I was at Lily’s level.

“We’re going out the dining room window, okay?” Without making a sound. Like when we play at being spies.

She was so frightened that she didn’t even smile, but she nodded again.

I led her by the hand down the hallway, away from the entrance. Every step seemed to me a blasphemy against something that could explode just by listening to us. The house, which an hour before had seemed normal to me, now felt alien, hostile, watching us. The refrigerator was humming. A clock marked the seconds. The heating exhaled a low breath from some hidden grate.

Everything seemed too strong to me.

Too dangerous.

As I walked through the living room, I saw the family photograph on the shelf: Derek with his arm on my shoulders, Lily in the middle, smiling with two loose teeth and a cardboard crown from his birthday party. For a moment my mind did what cowardly minds do when the horror is too great: it tried to defend him.

Maybe it wasn’t him.

Maybe Lily misunderstood.

Maybe someone else…

But then I remembered something that I had let go of at the time.

Two weeks earlier, Derek insisted on changing the smoke detector batteries himself. He said the system was failing. After that, one of them stopped blinking his usual blink. When I mentioned it to him, he replied, irritated, that I did not know how those devices worked.

I kept walking.

There was no longer room for maybe.

We arrived at the dining room. The window was high, with two leaves, and looked out onto the side garden fenced with boxwood. My fingers were shaking so much that I could hardly lift the lock. I did it millimeter by millimeter, hoping at any second to hear another click, another sound that would betray another surprise.

Nothing.

I pushed.

The window opened with a faint groan.

The fresh morning air came in like a blessing.

I picked Lily up and helped her through first. He fell on his feet on the wet grass. Then I went out, taking care not to hit the frame. As I touched land, I took my first deep breath.

We were out.

But we weren’t safe.

I circled the house without getting too close. My car was in the driveway, right in front of the porch. Too close to the front door. Too exposed. I wasn’t going to cross over there. I finally took the phone out of my bag and dialed 911 with clumsy fingers.

They answered the third tone.

I explained everything hurriedly: my daughter had heard my husband talk about an accident, the house smelled of gas, the front door was tampered with, we were outside. The operator told me to move away from the apartment immediately and not to try to re-enter for any reason. They had already sent police and firefighters.

“Is your husband still inside?” he asked.

I felt a chill.

“No. He left half an hour ago.

“Is there anyone else with access to the property?”

I thought of the silent house, of the half-lowered blinds, of the hidden buzz of the installations.

And then I saw it.

The white van parked across the street.

I hadn’t noticed it when I got to the garden because it was partially covered by some trees. His windows were tinted. Engine off. A man at the wheel.

Looking at us.

My pulse shot up.

“Yes,” I whispered. I think there’s someone watching the house right now.

“Get out of there,” the operator said, and her tone changed. Can he run?

I didn’t answer. He was already doing it.

I grabbed Lily and we ran to the house of the neighbor across the street, Mrs. Harper, a seventy-year-old widow who always swept her driveway in her dressing gown and whom Derek considered “an unbearable meddle.” I crossed the garden without asking permission and started knocking on the door.

“Open it!” Open up, please!

The truck started.

A low, threatening noise.