Years later, the school he had sketched on the margins of those PDF pages opened its doors. Children flooded the courtyard. The headmistress traced the lines of a verandah and commented to Sushil about the coolness that lingered even in the hottest afternoons. He smiled and thought of diagrams and measurements, of downloads and midnight study sessions, of the men who taught him how to listen to walls.

On the last page of his copy, someone — perhaps a young hand like his own once was — had scrawled: Build to last. Build for people. Build with care. Sushil folded the tablet and tucked it into his vest. Outside, a new roof rose against the sky, its shadow falling like a promise over the lane where children pressed their faces to windows, dreaming of spaces they would one day shape.

Sushil never sold the PDF; rather, he shared it, stored copies in the phones of apprentices, printed a few weatherproof booklets to keep in toolboxes. He understood now that free knowledge was itself a type of foundation. Buildings can shelter bodies, but knowledge shelters choices.