In the sublevels of Site 10, Dr. Yara Mirski raised the gemstone to the light with a gloved hand, in a gesture she'd repeated a hundred times before. She admired its black contours, broken up by the mottled white pattern and the golden filigree that wrapped around its exterior. SCP-001-Delta. The fourth SCP item considered a 'prime', or '001', item. One of several that had a hand in the creation of the Foundation. And, in Yara's opinion, by far the most frustrating. For one, there wasn't much else to know about Delta at Level 5 clearance. The Harbinger hated its code name. She pulled the trigger.