Mos Le'Harmless Caves

The Mos Le'Harmless Caves, also called the "Cave of Horrors", are found on Mos Le'Harmless, which players can reach only after completing the Cabin Fever quest. A light source is required in the caves. In the north-east, two staircases ascend to small islands with teak and mahogany trees and seaweed spawns. The caves are the only place where Cave horrors and Albino bats are found.

Monsters

 * Cave horrors (Level 58 Slayer and a Witchwood icon needed to fight). They are scattered around the cave and are aggressive.
 * Albino bats. These are rarely fought because they have no drops, and mainly serve as an annoyance to players who wish to fight the horrors because they are aggressive.

Quests

 * Cabin Fever is required.

Personalities

 * Cavey Davey guards the entrance to the caves. He warns players to be prepared before entering.

Trivia

 * The music "Little Cave of Horrors" is a reference to the film Little Shop of Horrors.
 * Cave horrors are regarded as having good drops. They occasionally drop prized Black masks, which enhance players abilities on Slayer assignments.
 * The "teak and mahogany" islands are rarely used for Woodcutting, given their distance from a bank and the need to cross the caves. Both regular Seaweed and Edible seaweed are found on the islands.
 * The black masks appear to be a stone, with pieces carved away when compared to the markings littered on the floor around the dungeon.
 * The name is a play on words, Mos Le'Harmless. Mostly Harmless which is a reference to the book, movie and radio show 'The Hitch Hiker's Guide to the Galaxy'.
 * Mos Le'Harmless is also a map type in the Funorb Game Arcanists.