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

Cave horror icon.png

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.png Big bones 1 Always 262


Item Quantity Rarity GE market price
Mithril axe.png Mithril axe 1 Common 75
Mithril kiteshield.png Mithril kiteshield 1 Uncommon 1,044
Rune dagger.png Rune dagger 1 Rare (~1/100) 4,391
Adamant full helm.png Adamant full helm 1 Rare (~1/100) 1,816 
Black mask.png Black mask(10) 1 Rare (1/512) 1,018,694


Item Quantity Rarity GE market price
Potato seed 5.png Potato seed 1–4 Common 1–4
Onion seed 5.png Onion seed 1–3 Common 1–3
Belladonna seed 5.png Belladonna seed 1 Common 57
Cabbage seed 5.png Cabbage seed 1–3 Common 1–3
Herb seed 5.png Toadflax seed 1 Uncommon (~1/30) 795
Herb seed 5.png Irit seed 1 Uncommon 47
Poison ivy seed 5.png Poison ivy seed 1 Uncommon 18
Cactus seed 5.png Cactus seed 1 Uncommon 98
Strawberry seed 5.png Strawberry seed 1 Uncommon 5
Sweetcorn seed 5.png Sweetcorn seed 1–2 Uncommon 2–4
Herb seed 5.png Avantoe seed 1 Uncommon (~1/59) 1,675
Herb seed 5.png Kwuarm seed 1 Uncommon (~1/98) 379
Tomato seed 5.png Tomato seed 1–2 Rare 1–2
Watermelon seed 5.png Watermelon seed 1 Rare 71
Herb seed 5.png Snapdragon seed 1 Rare (~1/106) 54,551
Herb seed 5.png Cadantine seed 1–2 Rare 1,034–2,068
Herb seed 5.png Lantadyme seed 1 Rare (~1/240) 2,358
Herb seed 5.png Dwarf weed seed 1 Rare (~1/376) 423
Herb seed 5.png Torstol seed 1 Rare (~1/626) 58,385


Item Quantity Rarity GE market price
Grimy guam leaf.png Grimy guam leaf 1 Common 15
Grimy marrentill.png Grimy marrentill 1 Common 13
Grimy tarromin.png Grimy tarromin 1 Common 132
Grimy harralander.png Grimy harralander 1–2 Uncommon 674–1,348
Grimy ranarr weed.png Grimy ranarr weed 1–2 Uncommon 7,640–15,280
Grimy irit leaf.png Grimy irit leaf 1 Uncommon 775
Grimy avantoe.png Grimy avantoe 1 Uncommon 1,814
Grimy kwuarm.png Grimy kwuarm 1 Uncommon 1,165
Grimy cadantine.png Grimy cadantine 1 Rare 1,312
Grimy lantadyme.png Grimy lantadyme 1 Rare 1,391
Grimy dwarf weed.png Grimy dwarf weed 1–2 Rare 448–896


Item Quantity Rarity GE market price
Nature rune.png Nature rune 3–6 Common 651–1,302


Item Quantity Rarity GE market price
Coins 250.png Coins 44–495 Common Not sold
Limpwurt root.png Limpwurt root 1 Common (~1/12) 918
Teak logs.png Teak logs 4 (noted) Common 1,144
Mahogany logs.png Mahogany logs 2–4 Uncommon 826–1,652
Ensouled horror head.png Ensouled horror head 1 Uncommon (1/30) 3,037
Clue scroll (hard).png Clue scroll (hard) 1 Rare (1/128) Not sold
Long bone.png Long bone 1 Rare (1/400) Not sold
Curved bone.png 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.png Uncut sapphire 1 Rare 455
Uncut emerald.png Uncut emerald 1 Rare 679
Uncut ruby.png Uncut ruby 1 Rare 1,249
Nature talisman.png Nature talisman 1 Very rare 744
Uncut diamond.png Uncut diamond 1 Very rare 2,627
Rune javelin.png Rune javelin 5 Very rare 875
Loop half of key.png Loop half of key 1 Very rare 10,307
Tooth half of key.png Tooth half of key 1 Very rare 10,840
Rune spear.png Rune spear 1 Very rare 11,933
Shield left half.png Shield left half 1 Very rare 65,697
Dragon spear.png Dragon spear 1 Very rare 37,226