Horror from the Deep
IntermediateMembersShortOSRS TCG Horror from the Deep — Old School RuneScape quest card mapping
Start: talk to Larrissa.
The lighthouse protecting Kandarin's north-western coastline has mysteriously stopped operating, and contact with the lighthouse keeper Jossik has been lost. The Council would greatly appreciate it if somebody could discover for them what has happened to this most vital landscape feature.
Horror from the Deep is a members Old School RuneScape quest rated Intermediate. The OSRS TCG Horror from the Deep card list covers 11 of the items and monsters involved, including Dagannoth mother, Fire rune and Air rune. This page pairs the quest with those cards and with the open player trades for them; the OSRS Wiki remains the authority on requirements and the walkthrough itself.
Full quest guide on the OSRS Wiki →Beta: quest cards are matched to the best of our current knowledge and may include some mismatches — we're still working through the data. If something doesn't look right, please submit feedback.
The quest and minigame card relationships on this page are maintained by OSRS Card Exchange. Whether a related item or monster currently appears as a card, and its displayed OSRS TCG rarity, are legacy compatibility fields derived from the referenced OSRS TCG catalogue snapshot. OSRS Card Exchange is independently operated and is not affiliated with or endorsed by OSRS TCG or its developers. View OSRS TCG attribution and licence information.
Required items & monsters
Items you need to bring and the monsters you'll fight, paired with their OSRS TCG cards. See the wiki for the full requirement list.
Resource
One of the 4 basic elemental Runes.
Resource
One of the 4 basic elemental Runes.
Resource
One of the 4 basic elemental Runes.
Resource
One of the 4 basic elemental Runes.
Resource
Hot glass ready to be blown into useful objects.
Resource
Useful for lighting a fire.
Resource
Good for hitting things!
Resource
Keeps things in place fairly permanently.
Resource
A plank of wood!
Resource
A foul smelling thick tar-like substance.
- Any swordany one
- Bronze sword
- orIron sword
- orSteel sword
- orBlack sword
- orMithril sword
- orAdamant sword
- orRune sword
- orDragon sword
Any sword or longsword you are willing to lose, EXCEPT the rusty sword and prop sword. It is consumed on the door.
Used: Used on the sealed door in the basement sea cavern.
- Any arrowany one
Any arrow EXCEPT ogre arrows and training arrows; bolts do not work. It is consumed on the door.
Used: Used on the sealed door in the basement sea cavern.
Monsters you'll fight
Also required (not collectible cards): Combat equipment able to hit all attack styles for the Dagannoth Mother.
Walkthrough overview
A brief summary of the quest, noting where each card is used. The OSRS Wiki has the full, authoritative walkthrough.
- 1
Head to the Lighthouse north of the Barbarian Outpost and speak to Larrissa. Repair the storm-damaged bridge using a hammer, steel nails, and two planks.
- Hammer
- Steel nails
- Plank
- 2
Enter the lighthouse and repair the Lightomatic Deluxe 500 light mechanism using molten glass and swamp tar, then relight it with a tinderbox.
- Molten glass
- Swamp tar
- Tinderbox
- 3
Go down into the basement sea cavern and use a fire, water, earth, and air rune on the sealed door, followed by a sword and an arrow. None are returned.
- Fire rune
- Water rune
- Earth rune
- Air rune
- Any sword
- Any arrow
- 4
Pass through the door, defeat the level 100 dagannoth (safespottable), then fight the Dagannoth Mother, switching attack styles as she cycles through her six forms.
- 5
Speak to the rescued lighthouse keeper Jossik to complete the quest.
Open exchanges for these cards
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OSRS TCG Horror from the Deep — frequently asked
- Which OSRS TCG cards are linked to Horror from the Deep?
- 11 catalogue cards map to Horror from the Deep: Fire rune, Air rune, Water rune, Earth rune, Molten glass, Tinderbox, Hammer, Steel nails, Plank, Swamp tar and Dagannoth mother. They are the quest's items and the monsters you fight that exist as cards in the Old School RuneScape TCG. The mapping is maintained by OSRS Card Exchange; whether something is a card, and its rarity, come from the OSRS TCG catalogue.
- Is Horror from the Deep members only?
- Yes, Horror from the Deep is a members quest. It is rated Intermediate.
- What is the rarest card from Horror from the Deep?
- Dagannoth mother at Rare, which packs land on about 16% of the time. Rarity comes from the card's OSRS TCG score, not from the quest.
- How do I get the OSRS TCG Horror from the Deep cards?
- Pull them from packs in the OSRS TCG RuneLite plugin, or trade for them. Open exchanges for this quest's cards are listed further down this page, and the trade itself happens in the plugin's own Trade window in game.
- Does this page tell me how to complete Horror from the Deep?
- It gives a brief walkthrough overview and maps the quest to its OSRS TCG cards — the items and monsters involved, and who is trading them. For the complete requirements, detailed steps and rewards, the OSRS Wiki link on this page is the authority.
Related cards
Cards that come up around Horror from the Deep but that you don't actually need for it — NPCs mentioned in passing, scenery, or items suggested only for convenience.
Monster
A horror from the ocean depths...
A level 100 dagannoth is fought before the boss, but this quest's dagannoth has no required card and can be safespotted.
Resource • Weapon
A magical staff imbued with the power of ice and fire.
Suggested combat gear for hitting multiple elemental styles against the boss; a recommendation, not required.