The smell of old floor wax and damp concrete is the only thing that ever really feels like home to me anymore. I have spent the last twenty-two years walking the hallways of this elementary school, my keys jangling against my hip, my mop bucket clattering in the rhythm of a day that nobody else ever truly sees. Most people think a custodian just cleans up the messes left behind by children. They don’t see the way the light hits the floor after the buses pull away, or the way the silence settles into the corners of the library, or the way the school starts to look like a small, hollow ribcage once every human being has gone. But it was nine years ago, on a particularly gray October Friday, when I noticed something that changed my entire relationship with this building. It was 2:30 in the afternoon, and I was buffing the tiles outside the fourth-grade wing when I saw three kids sitting by their cubbies, picking at a packet of saltines they had clearly been hoarding since lunch. They weren’t talking. They were just eating, slow and deliberate, the way people do when they aren’t sure where the next meal is coming from.