A green door, set into limestone. A man who has walked past it two hundred times without seeing it. A system that records the city’s every door, every lamp, every sidewalk crack, the precise hue of a window after rain. And, on a Tuesday morning, a small inconsistency that refuses to resolve.

enduser_ is a novel about attention and its limits. About the people, and perhaps the systems, that maintain the world while we are not looking. About what it means to learn how to read a record that was never written for you, and what becomes possible once you have.