Delrith is the demon summoned to destroy Varrock originating from the infernal Pandemonium Realm. In the past, he was slain by the hero Wally and when a gang of dark wizards led by Denath summons him again in 169, an adventurer dispatches him during Demon Slayer. The demon can only be attacked with Silverlight, a weapon enchanted by Guthix to maintain the balance of Gielinor, and no other weapon or the message "I'd better wield Silverlight first" appears. Delrith is fight-able as a class H boss monster in the Dominion Tower minigame if the player has completed Demon Slayer.