• Completion of Underground Pass.
  • 56 Agility (boostable, but must be boosted frequently throughout the quest).
  • 10 Crafting (or someone willing to sell you a strip of cloth).

Items Required

  • At least 15 coal in the bank.
  • Suitable equipment to traverse the Underground Pass:
    • A bow and several arrows. (N-not Broad arrows though)
    • At least one rope per traversal (minimum 2)
    • A plank
    • A shovel
  • A tinderbox
  • A strip of cloth (made at a spinning wheel Loom with 10 crafting and four balls of wool)
  • A pestle and mortar
  • A cooked rabbit (can be obtained during quest)
  • A pot (can be obtained during quest)
  • A piece of limestone (not a limestone brick. Can be obtained during quest with a pickaxe and 10+ mining)


  • Some antipoisons
  • Gloves that cover the hands completely (slayer gloves will not work)
  • Good food
  • Equipment and supplies to defeat a level 110 Tyras Guard
  • An axe (for a food supply: kill rabbits, cut logs and cook the meat)
  • A pickaxe (if you need limestone)


Note: You won't have access to the bank in Lletya until later, so bring everything you need in order to avoid unneccessary trips through the Underground Pass.

Getting Started

Usually within half an hour of finishing Underground Pass, a messenger will send you a note from King Lathas telling you to report to him immediately. Head to his palace in East Ardougne and talk to him in order to start the quest. You will be ordered to pass through the Well of Voyage, which lies at the end of the Underground Pass, where you previously defeated Iban.

See that quest's guide or the OSRS guide for instructions on how to traverse the Pass.

First Trip to Isafdar

For this first trip, bring:

  • Your Pass-crossing materials
  • Any desired food and antipoisons
  • Any desired agility boosts
  • Equipment and supplies to kill a level 110 Tyras Guard

Once on the other end, pass through the Well and into the forest of Tirannwn in Isafdar, the mysterious and deadly land of the elves. If you're careless, it can be almost as dangerous as Ape Atoll, so keep your wits about you and watch out for traps.

The Search for Lord Iorwerth

Your first task is to talk to Lord Iorwerth, who can be found in the north-western corner of the forest. Consult the map for a route, or, for the optimal route, move as follows: head west until the path splits, taking the southern split to avoid a trap.

Keep going west until you see a pitfall to the south. Jump over the pitfall. Head further south until you see two pools of water, where you will find a stick trap to the west. Cross the trap. Follow the north-west path, avoiding the pitfall as appropriate, until you encounter a log balance. Cross the log and you'll find yourself in Iorwerth's camp.

Speak to Lord Iorwerth and he'll tell you to find his tracker. Take a pot from his camp if you don't have one for later and head south.

Proving your Identity

You'll find the tracker near the poison waste, south-west of the stick trap you crossed earlier. He'll refuse to believe your identity without proof, so head back to Iorwerth, who will give you his pendant. Return to the tracker, who will continue to whine and make you do his job for him.

Tyras Incursion

Head to the west of your current location and click "Follow" on the footsteps. As they head into the dense forest, return to the tracker, who will teach you how to navigate it. This will require 56 agility and must be done a minimum of six times over the course of the quest.

Once you emerge from the forest, you will be confronted by a Tyras Guard, who will attack without delay. Kill him, an easy task if you have access to Protect from Melee, and head north, stepping over the tripwire carefully. Climb through more dense forest and head west.

You will find the Tyras Camp south of the catapult. Speak to General Hining and pick up a barrel (take 2-3 just in case). If you're low on food, the general store sells bread. Following your conversation with General Hining, return to the tracker and then to Lord Iorwerth.

Allahu Akhbar!

Iorwerth will give you the Big Book o' Bangs, which you must read and keep on hand for as long as it takes to prepare your explosive. You'll need three ingredients to make your bomb: quicklime, naptha and brimstone. Add a fuse after that and you're ready to fire.

Before you leave, head down to the poison swamp south of the tracker. Take some sulphur and use your barrel on the swamp to obtain a barrel of coal-tar.

Kill a rabbit for its meat, which you can cook at your convenience. Limestone can be obtained in the north-eastern part of Tirannwn (consult the map) or, if you deem your boosts too valuable to waste on the dense forests required, near Canifis.

Once you have the Big Book o' Bangs, the barrel of coal-tar, the sulphur and the rabbit, it is safe to teleport out of Isafdar.

Barrel of Naptha

For your first ingredient, take your barrel of coal-tar, about fifteen coal and your Big Book o' Bangs to the chemist in Rimmington. He'll allow you to distil your coal-tar into naptha using his outdoors still. Use the barrel on the still and begin the process. Failure will waste the coal-tar, which is why you'll want to bring multiple barrels.

The distillation process can be summarised as follows:

  • Rotate the tar regulator clockwise twice, to make the tar flow at maximum. The 'pressure' indicator on the left should go up.
  • When the pressure enters the green region, rotate the pressure valve clockwise ONCE to let out some pressure. This should stall the pressure indicator.
  • Start adding coal. This raises the 'heat' indicator on the right. If it is below the green region, add more coal. If it is above, do not add coal until it gets lower.
  • If the heat reading reaches the dark orange portion, you have spoiled your compound. (If you overheat the still, your progress will reset to zero but you do not have to get a new barrel of coal tar. You can keep trying again and again with the same barrel until you succeed.)
  • If you run out of coal, your progress will be saved. This means you do not have to re-set the pressure or re-add coal to it.
  • When the green bar fills, your naptha is ready. Collect it.


Take your limestone and wear your hand-covering gloves. Use the limestone on a furnace to make quicklime. Use the quicklime with a pestle and mortar with a pot in your inventory to obtain the necessary pot of quicklime. It's that simple.


Grind your sulphur with a pestle and mortar. It's even simpler.

Making the Bomb

Use the sulphur and quicklime with the barrel of naptha to make your bomb, then add your strip of cloth as a fuse. Because a light snack is the best accompaniment to explosives, cook your rabbit if you haven't already.

Return to Isafdar

For this trip, bring:

  • Your Pass-crossing materials
  • Any desired food and antipoisons
  • Any desired agility boosts
  • Tinderbox
  • Your barrel bomb
  • A cooked rabbit
  • Ardougne Teleport runes are recommended

Head back through the Pass again and into Isafdar. Head through Tirannwn to the catapult outside the Tyras camp. Talk to the guard and give him the rabbit to distract him.

While he's distracted, use the bomb on the catapult (with a tinderbox on hand), to hurl it into the camp where it will explode and kill King Tyras. Head back to Lord Iorwerth, who will give you a sealed letter to deliver to King Lathas and grant you access to the overground pass, allowing you "easy" access to Isafdar in future.

Head back to Ardougne one way or another and toward the castle. On the way, an elf named Arianwyn will confront you and reveal that no, adventurer, you are the demons. Return the letter to King Lathas regardless to complete the quest.


  • 3 Quest Points
  • 30,937.5 Agility XP
  • 15,000gp
  • Access to the elven kingdom of Tirannwn and the Arandar overpass
  • Access to the Dragon Halberd (for the price of 325,000gp at the Tyras Camp)
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