Nightmare Zone - OSRS Wiki

The Nightmare Zone is a combat-based minigame located north-west of Yanille bank. Players enter a "dream" to take on bosses they have previously defeated during completed quests. It is run by Dominic Onion, a mage from Lunar Isle. The dreams that make up this minigame take place in an instance of the King Black Dragon Lair.

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Nightmare Zone - OSRS Wiki

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