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This article is about the slayer monster. For the superior variant, see Cave abomination.
Cave horror icon

Cave horrors are assigned by Chaeldar, Nieve and Duradel after completing the quest Cabin Fever. Killing cave horrors requires 58 Slayer, a witchwood icon, and a light source (unless a Fire of Eternal Light is lit) to see in the caves.

Cave horrors are often killed for their black mask drops along with a decent rate of hard clue drops.

A witchwood icon must be worn at all times while in close combat with cave horrors; if not worn, they will deal damage equal to 10% of the player's total Hitpoints level rounded down (e.g. 7 damage at 76 HP or 9 at 98). However, a witchwood icon is not required if the player always has Protect from Melee active or is using safe spots.


Cave horrors are found inside Mos Le'Harmless Caves. To get there, players may do any of the following:

Strengths and weaknesses

Cave horrors use a Magic-based Melee attack, so it is advised that players bring Dragonhide armour or other armour that provides Magic Defence bonus. Players must also be wearing a witchwood icon, which can be purchased from any Slayer master. The cave horror will use a scream attack which WILL NOT reduce a player's stats however will deal damage to a player based upon their Hitpoints. Damage calculation (Player's HP level/10) rounded down to the lowest integer. However, the witchwood icon is NOT necessary when fighting them from a distance or when using the Protect from Melee prayer, so a better amulet may be used instead. Since cave horrors are wider than one square, a dragon halberd or a crystal halberd can be very useful as a special attack weapon, and can sometimes be used in the right areas to safespot the cave horrors behind the mushrooms, stalagmites, and boulders. 

Note: It is advisable to keep the witchwood icon in case of a close combat encounter. 


Estimated drop rates are based off 9,397 kills.[1]


Item Quantity Rarity GE market price
Big bones Big bones 1 Always 236


Item Quantity Rarity GE market price
Mithril axe Mithril axe 1 Common 202
Mithril kiteshield Mithril kiteshield 1 Uncommon 1,005
Rune dagger Rune dagger 1 Rare (~1/100) 4,427
Adamant full helm Adamant full helm 1 Rare (~1/100) 1,813 
Black mask Black mask(10) 1 Rare (1/512) 1,059,929


Item Quantity Rarity GE market price
Potato seed 5 Potato seed 1–4 Common 1–4
Onion seed 5 Onion seed 1–3 Common 1–3
Belladonna seed 5 Belladonna seed 1 Common 36
Cabbage seed 5 Cabbage seed 1–3 Common 1–3
Herb seed 5 Toadflax seed 1 Uncommon (~1/30) 969
Herb seed 5 Irit seed 1 Uncommon 50
Poison ivy seed 5 Poison ivy seed 1 Uncommon 20
Cactus seed 5 Cactus seed 1 Uncommon 54
Strawberry seed 5 Strawberry seed 1 Uncommon 8
Sweetcorn seed 5 Sweetcorn seed 1–2 Uncommon 5–10
Herb seed 5 Avantoe seed 1 Uncommon (~1/59) 731
Herb seed 5 Kwuarm seed 1 Uncommon (~1/98) 385
Tomato seed 5 Tomato seed 1–2 Rare 3–6
Watermelon seed 5 Watermelon seed 1 Rare 92
Herb seed 5 Snapdragon seed 1 Rare (~1/106) 87,742
Herb seed 5 Cadantine seed 1–2 Rare 1,022–2,044
Herb seed 5 Lantadyme seed 1 Rare (~1/240) 1,736
Herb seed 5 Dwarf weed seed 1 Rare (~1/376) 357
Herb seed 5 Torstol seed 1 Rare (~1/626) 58,291


Item Quantity Rarity GE market price
Grimy guam leaf Grimy guam leaf 1 Common 10
Grimy marrentill Grimy marrentill 1 Common 10
Grimy tarromin Grimy tarromin 1 Common 112
Grimy harralander Grimy harralander 1–2 Uncommon 560–1,120
Grimy ranarr weed Grimy ranarr weed 1–2 Uncommon 10,101–20,202
Grimy irit leaf Grimy irit leaf 1 Uncommon 830
Grimy avantoe Grimy avantoe 1 Uncommon 1,791
Grimy kwuarm Grimy kwuarm 1 Uncommon 1,373
Grimy cadantine Grimy cadantine 1 Rare 1,574
Grimy lantadyme Grimy lantadyme 1 Rare 1,460
Grimy dwarf weed Grimy dwarf weed 1–2 Rare 507–1,014


Item Quantity Rarity GE market price
Nature rune Nature rune 3–6 Common 879–1,758


Item Quantity Rarity GE market price
Coins 250 Coins 44–495 Common Not sold
Limpwurt root Limpwurt root 1 Common (~1/12) 941
Teak logs Teak logs 4 (noted) Common 1,024
Mahogany logs Mahogany logs 2–4 Uncommon 1,064–2,128
Ensouled horror head Ensouled horror head 1 Uncommon (1/30) 2,768
Clue scroll (hard) Clue scroll (hard) 1 Rare (1/128) Not sold
Long bone Long bone 1 Rare (1/400) Not sold
Curved bone Curved bone 1 Very rare (1/5,000) Not sold

Gem drop table

In addition to the drops above, this monster has access to the gem drop table.

Show/hide gem drop table
Item Quantity Rarity GE market price
Uncut sapphire Uncut sapphire 1 Rare 452
Uncut emerald Uncut emerald 1 Rare 690
Uncut ruby Uncut ruby 1 Rare 1,335
Nature talisman Nature talisman 1 Very rare 1,129
Uncut diamond Uncut diamond 1 Very rare 2,780
Rune javelin Rune javelin 5 Very rare 605
Loop half of key Loop half of key 1 Very rare 10,022
Tooth half of key Tooth half of key 1 Very rare 10,025
Rune spear Rune spear 1 Very rare 11,951
Shield left half Shield left half 1 Very rare 65,359
Dragon spear Dragon spear 1 Very rare 37,763



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