Silent Whale Song

The world is an infinite library, and all entities exist in the form of "books" floating in the "sea of ​​indexes." The guardian is not a dragon, but a silent whale that lives by devouring "repetitive narratives" and "false memories". Every time they sing, it triggers a "recataloging" of civilization - chapters on mountains are exchanged with passages on rivers, and someone's life is completely archived into another collection of stories. The protagonist is the only cataloger who can "hear" whale songs. He discovers that the latest whale song is pointing to an overflow index item named "I" that does not exist.