|Released||7 January 2016 (Update)|
|Race||Corporeal spirit (formerly human)|
|Examine||Guardian of the Dark Altar.|
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.
Inhabitants of Arceuus