El Negro (Specter) is an entry of the Archive that has not been written yet. What is known of it is found in the entries that mention it:
- El Negro (Demonic Entity)
- Omniporal Labyrinth
- El Negro (CDI)
- Inferno — Ante-Inferno + full descent
- Hooded Demon (Zone 5) ↔ El Negro
- City of Dis (Descent)
- Baator
Spanish entry: El Negro Espectro