For twenty years, Elias had monitored the data streams in the subterranean vault of the Archive. Most of the files were named with simple logic—dates, surnames, or project titles. But once in a while, a "Ghost File" would drift into his queue.
That night, for the first time in two decades, Elias didn't log out. He left his badge on the desk, climbed the emergency stairs to the surface, and began walking north. He didn't need the Archive anymore; he was going to find the source of the rain. 479108_493479
Unlike the others, this file had no author and no metadata. When Elias opened it, he didn't find the usual spreadsheets or surveillance logs. Instead, he found a single, high-resolution audio recording of a rainstorm. For twenty years, Elias had monitored the data