# Nightmare Herald location (Black Chain Prison)

> Nightmare Herald: Codex in Black Chain Prison, Open Seas.

Canonical: https://lostark.wiki/map/black-chain-prison-59028/nightmare-herald

**Codex**: Black Chain Prison, Dark Sanctum

- [Knight of Darkness 2](https://lostark.wiki/map/black-chain-prison-59028/knight-of-darkness-2)
- [Underground Prison Spider 2](https://lostark.wiki/map/black-chain-prison-59028/underground-prison-spider-2)

## NPCs

[Nightmare Herald](https://lostark.wiki/database/npcs/nightmare-herald-512257)

## Related

- [Black Chain Prison](https://lostark.wiki/map/black-chain-prison-59028)
- [Map](https://lostark.wiki/map)
- [Home](https://lostark.wiki/)