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Tyss chathead.png

Tyss is an NPC who guards the Dark Altar in the northernmost reaches of Great Kourend. If players have at least 60% favour with the Arceuus House, they may use the Arceuus spellbook by speaking to him.

Players with 100% favour can speak to him to obtain Arceuus signets, a component in building dark altars for a player-owned house.