Last Creature Bureau
Creature File XT-001: The Obsidian Heart of the First Cataloging | Last Creature Bureau Lore
The Obsidian Heart: The Scar That Birthed the Bureau The Bureau's oldest wound was never a discovery. Creature File XT-001 — designated Entity Nullius by the Directorate, known as the Obsidian Heart by those who still remember its touch — was remembered by the Architects moments before their timeline