Old School RuneScape Wiki
Old School RuneScape uses the British convention for floor numbering: Ground floor, first floor, etc.
This article is about the normal variant. For the stronger variant, see Deviant spectre. However, for the superior variant, see Abhorrent spectre.

Aberrant spectre icon.png

Aberrant spectres are Slayer monsters that require level 60 Slayer to kill. They frequently drop large amounts of grimy herbs and herb seeds. Because of this, bringing a herb sack and seed box when killing them is recommended.

Deviant spectres, found in the Catacombs of Kourend, can be killed in their place if you are assigned aberrant spectres.


Strengths and weaknesses

A nose peg or slayer helmet is required when fighting aberrant spectres; if you do not, their attacks will always hit and drain your combat stats extremely quickly.

They attack using Magic, so the Protect from Magic prayer can be helpful, or players can wear dragonhide armour. Using a Salve amulet or Salve amulet (e) will give you a large advantage, since they are an undead monster. However, bonuses do not stack with a Slayer helm/black mask. It should also be noted that using Protect from Magic does not counter their stat-reducing abilities. 

Note: It is possible to use a dwarf multicannon inside the Stronghold Slayer Cave. This is recommended for fastest Slayer experience.

It is also possible to safe-spot one of the aberrant spectres by using the south-eastern corner of the wall of the staircase-room, but only with a long-ranged attack. This only works with Ranged or Magic, as there has to be at least six spaces between the player and the aberrant spectre before the player gets out of the spectre's attack range. It's not possible to use halberds or thrown weapons such as throwing knives and throwing axes without getting hit as their attack range is not long enough.

It's possible to safe-spot in the Slayer Tower by standing on the brick pile just west of the Agility chain shortcut and pulling spectres just in front of the suit of armour from the room south of the shortcut. A crossbow's rapid attack style will be able to target aberrant spectres from this distance, making it a very useful spot.



There is a ~1/6 chance of receiving an item from the rare allotment seed drop table.
Item Quantity Rarity GE market price
Toadflax seed.png Toadflax seed 1 Uncommon (~27/750) 795
Irit seed.png Irit seed 1 Uncommon (~18/750) 47
Belladonna seed.png Belladonna seed 1 Uncommon (~18/750) 57
Poison ivy seed.png Poison ivy seed 1 Uncommon (~13/750) 18
Cactus seed.png Cactus seed 1 Uncommon (~12/750) 98
Avantoe seed.png Avantoe seed 1 Uncommon (~12/750) 1,675
Kwuarm seed.png Kwuarm seed 1 Uncommon (~9/750) 379
Snapdragon seed.png Snapdragon seed 1 Rare (~6/750) 54,551
Cadantine seed.png Cadantine seed 1 Rare (~4/750) 1,034
Lantadyme seed.png Lantadyme seed 1 Rare (~3/750) 2,358
Dwarf weed seed.png Dwarf weed seed 1 Rare (~2/750) 423
Torstol seed.png Torstol seed 1 Rare (1/750)[1] 58,385


Up to three herbs are dropped when the herb table is rolled.

Item Quantity Rarity GE market price
Grimy guam leaf.png Grimy guam leaf 1–3 Common 15–45
Grimy marrentill.png Grimy marrentill 1–3 Common 13–39
Grimy tarromin.png Grimy tarromin 1–3 Common 132–396
Grimy harralander.png Grimy harralander 1–3 Common 674–2,022
Grimy ranarr weed.png Grimy ranarr weed 1–3 Common 7,640–22,920
Grimy irit leaf.png Grimy irit leaf 1–3 Common 775–2,325
Grimy avantoe.png Grimy avantoe 1–3 Common 1,814–5,442
Grimy kwuarm.png Grimy kwuarm 1–3 Common 1,165–3,495
Grimy cadantine.png Grimy cadantine 1–3 Uncommon 1,312–3,936
Grimy lantadyme.png Grimy lantadyme 1–3 Uncommon 1,391–4,173
Grimy dwarf weed.png Grimy dwarf weed 1–3 Uncommon 448–1,344
Grimy snapdragon.png Grimy snapdragon 1–2 Very rare 8,405–16,810

Weapons and armour

Item Quantity Rarity GE market price
Steel axe.png Steel axe 1 Uncommon 26
Mithril kiteshield.png Mithril kiteshield 1 Uncommon 1,044
Lava battlestaff.png Lava battlestaff 1 Uncommon 9,454
Adamant platelegs.png Adamant platelegs 1 Uncommon 3,506
Rune full helm.png Rune full helm 1 Uncommon 20,588
Mystic robe bottom (dark).png Mystic robe bottom (dark) 1 Rare (1/512) 47,703

Other drops

Item Quantity Rarity GE market price
Coins 250.png Coins 460 Uncommon Not sold
Gem drop table.png Gem drop table 1 Uncommon (5/128)[2] Not sold
Clue scroll (hard).png Clue scroll (hard) 1 Rare (1/128) Not sold

Gem drop table

In addition to the drops above, this monster has a 5/128 chance to access the gem drop table.

Show/hide gem drop table
Item Quantity Rarity GE market price
Uncut sapphire.png Uncut sapphire 1 Rare
(1/102.4; 1/76.8)[G 1]
Uncut emerald.png Uncut emerald 1 Rare
(1/204.8; 1/153.6)[G 1]
Uncut ruby.png Uncut ruby 1 Rare
(1/409.6; 1/307.2)[G 1]
Chaos talisman.png Chaos talisman 1 Very rare
(1/1,092.27; 1/819.2)[G 1]
Uncut diamond.png Uncut diamond 1 Very rare
(1/1,638.4; 1/1,228.8)[G 1]
Rune javelin.png Rune javelin 5 Very rare
(1/3,276.8; 1/2,457.6)[G 1]
Loop half of key.png Loop half of key 1 Very rare
(1/3,276.8; 1/2,457.6)[G 1]
Tooth half of key.png Tooth half of key 1 Very rare
(1/3,276.8; 1/2,457.6)[G 1]
Rune spear.png Rune spear 1 Very rare
(1/52,428.8; 1/4,608)[G 1]
Shield left half.png Shield left half 1 Very rare
(1/104,857.6; 1/9,216)[G 1]
Dragon spear.png Dragon spear 1 Very rare
(1/139,810.13; 1/12,288)[G 1]
  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 The drop rate is increased when wearing a Ring of wealth.