At 7:12 on Saturday morning, my phone screamed from the nightstand.
It wasn't the alarm I set. It was a different sound, a hard electronic shriek I had only heard once before, during the installer demo. I sat up, my heart hammering.
The screen glowed red in the dark bedroom.
ZONE THREE: EXTREME FLOW DETECTED.
Three weeks earlier, Green Line Irrigation had upgraded my system with pressure sensors wired into the new RainFlow controller. The installer had explained the alerts while we stood in the side yard.
"If a line ruptures, your phone knows before your shoes get wet," he'd said.
My shoes were about to get wet.
I grabbed the phone and opened the security app with my thumb. The side-yard camera came up grainy in the early light. And there she was.
Grace Hollis was inside my gate with a claw hammer in her right hand.
She lives on the corner beside my house, sixty years old, the neighbor who had brought cookies the week we moved in. I stared at the little screen, and for a few seconds my brain refused to connect the woman I knew with the tool in her fist.
She looked once toward my bedroom window. Then she crossed the lawn toward the newest sprinkler head.
It wasn't running. The system doesn't run on Saturday mornings. She stopped beside it, raised the hammer, and brought it down.
The first strike cracked the plastic housing. I heard it through the camera's microphone, a sharp snap like a branch breaking.
The second strike drove the whole head sideways. It tilted in the wet soil, crooked and wrong.
The third strike split the pipe underneath.
Water exploded out of the ground, shooting up in a thick silver column and coming down in a hard sheet across the lawn. In seconds, the flower bed beside the fence turned to mud.
Grace stepped back so the spray wouldn't reach her shoes. She didn't flinch. She didn't look surprised, the way a person would if they'd just discovered a leak. She reached into the pocket of her jacket with her free hand and pulled out her phone.
Then she started taking pictures, moving around the geyser to photograph the broken head from several angles.
Water flooded the flower beds. It ran beneath the side gate, crossed the narrow driveway, and poured toward my foundation.
She smiled β a small, satisfied smile, like someone who had just solved a problem.
She placed the hammer inside a canvas gardening bag, walked out through the gate, and crossed the street to her own house.
I threw on jeans and a shirt over my pajamas and ran downstairs.
By the time I reached the side yard, water was over my shoes. The soil around the sprinkler had turned to soup. My basement window well was already filling, a dark sheet of water pressing against the glass.
I splashed to the irrigation control box on the side of the house and wrenched the main valve closed with both hands.
The violent spray shuddered. It weakened into a stutter, then a dribble, then nothing.
Water kept moving across the lawn anyway, carrying mulch and loose soil toward the foundation. I grabbed the shovel from the garage and started cutting a shallow channel toward the street drain, throwing mud in frantic scoops.
My son Lucas appeared at the back door in his pajamas. He's thirteen, all knees and elbows, and he stood there with his eyes wide.
"What happened?"
"Stay inside."
"Did a pipe break?"
"Grace broke it."
He looked toward the neighboring house, then back at me.
"You saw her?"
"The camera did."
I pointed toward the kitchen with the shovel.
"Get every old towel from the laundry room. Put them along the basement door. Move fast."
He disappeared inside.
I dug faster. My house sits a little lower than Grace's property, and any serious flow from the side yard comes straight for my foundation before it ever reaches the street.
That had been the subject of six months of arguments β her claims about my landscaping, my spray, my water pressure, every one of them investigated and dismissed. She kept filing them anyway.
At the curb, I saw her curtains move. Just a twitch, barely there. But I knew she was watching.
The channel I'd cut finally reached the drain. Water started pulling away from the house, a thin brown stream carrying mulch down the gutter. I straightened up, breathing hard, my jeans soaked to the knee.
Lucas came back with an armful of towels and dropped them along the basement door.
"Are we going to have to leave?" he asked.
I thought about the promise I'd made when we bought this house β the first stable home he'd ever had. Three apartments in four years before that. He'd stopped decorating his room because he expected every place to be temporary.
"No," I said.
"What if the foundation is ruined?"
"Then we repair it."
"What if she does something else?"
I looked at my phone. The video file sat there on the screen, fourteen minutes long, her face clear in the morning light.
"Then we make sure people finally see what she's doing."