|Main music||The Sound of Guthix|
|Strongest monster||Tormented demon|
|Dwarf multicannon||Not allowed|
|Quests||While Guthix Sleeps|
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The Ancient Guthix Temple is a temple found in the While Guthix Sleeps quest. To access it, the player must have a Sapphire lantern. If the player goes to the Tears of Guthix cavern, one of the Light creatures can be attracted to the player, who can then ride the creature down the chasm and to the temple. After While Guthix Sleeps, players can return to the temple to fight Tormented demons.
During the quest, the player, pretending to be Surok Magis in order to get past Movario and Darve, goes into the temple and must open an ancient huge door within this temple by solving a puzzle concerning Herblore.
Also during the quest the temple houses the legendary Stone of Jas. The Stone is protected by the Balance Elemental, a Guardian created by Guthix. It has remained there for centuries but during the quest it was stolen by Lucien, a Mahjarrat who also possesses the Staff of Armadyl.
- When accessing the temple, the cutscene that occurs of the character being lowered down by a light being could be a reference to a similar scene in the movie "The Abyss".
- When a player was at the entrance to the temple, the Air key, Water key, Earth key and Fire key could be seen floating in the blackness near the temple, easily visible on the minimap. These were removed in an update.
- When going down the chasm, during the cutscene there is a Cave goblin attempting to go down to navigate the chasm under Moravio's orders. This still occurs even after the quest is completed, and may be an oversight from Jagex.
- The Temple's design - namely the door with the likeness of Guthix carved into it - could be a reference to the likeness of Salazar Slytherin in the Chamber of Secrets in Harry Potter and the Chamber of Secrets.