Regicide Quest PC

Start: Begin by reading a letter given to you by a Messenger.
Quests: Biohazard and Underground Pass.
Skills: At least level 56 Agility, 25 Ranging, and the ability to defeat a level 
110 Guard. 50 Thieving is also recommended.
What You Need: 2-3 Ropes, A bow and some arrows, Good armor, weapons and food, 
Antipoison and Prayer Potions, a Spade, Pestle & Mortar, Hatchet and Tinderbox, 
Limestone, Pot, 4 Balls of Wool, 10-25 Coal, a Plank and a method of Teleportation. 
Optional Items: Boots of Lightness, a few thousand gp and some Agility Potions.


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Getting Started

Once you have completed the Underground Pass Quest, at some point a Messenger will 
appear and give you a letter. Read it and speak to King Lathas in Ardougne. He will 
tell you that the way to the realm of the Elves is now open, and you must go 
through the Underground Pass to get there. Head to the pass which is located in the 
cave near Koftik in the western-most part of West Ardougne. 

The Underground Pass 

Once inside of the cave, you should see 3 paths. Don't take the middle one! Climb 
the rockslides to the north, and then you should see Koftik near a campfire. Take a 
few cloths from him and use them on your arrows, and then use the arrows on the 
fire to get Fire Arrows. Head north and shoot the rope holding the bridge up.

Now head south, and then east along the path until you come across a big hole with 
a pole rock on the ceiling. Use your rope with it to climb across, and if you fail 
you'll need to cross the bottom again and restart the pass. Once you cross the 
obstacle you'll lose your rope.Keep following the path and then climb the rocks, 
where you'll then find the Grid Floors from the Underground Pass Quest. Remember 
that everyone's path is different, but yours will be the same as it was for the 
Underground Pass Quest. 

After that, run through the hidden spikes corridor, climb down the well, go inside 
of the jail to the south, use your spade on the mud pile and then cross the ledge. 
You can either try crossing the bridges, or you could picklock the south gate if 
you have 50 Thieving. Cross the pipe and you'll end up in the Unicorn place. 
Proceed past the Paladins (don't speak to them or they will take you as one of the 
Iban Disciples), pass over the plank trap, and then open the doors. Head to Iban's 
Chamber where you defeated him before, go inside and then speak to Koftik, who may 
give you food. Then enter the Well of Voyage! Proceed out of the cave or recharge 
your Prayer and then continue.

Land of the Elves 

Now that you're through the pass, you'll be in the Elves' Realm, which is in the 
west-most part of RuneScape. For a fully-featured map of the area, see Bboyjyoung's 
Map of Isafdar. Shortly after leaving the pass, you'll be greeted by an Elf, but he 
will get shot down by 2 others. They will tell you that Lord Iowerth is expecting 
you in his camp to the northwest. Remember, the lands may look peaceful, but 
they're full of traps, so watch you step! The map above will show you which trail 
to take to the camp.

There are 3 main kinds of traps you may come across:

Leaves Traps - appear to be bushes and trees, but by walking under them you'll be 
hit by a lot of damage. If you find 1, you can try to jump over it by selecting 
the "Jump Leaves" option. 
Stick Traps - right-click these to try and cross over them, but if you fail, you'll 
take damage. 
Trip Wire Traps - these are normally hidden between rocks, and they will poison you 
if you walk through them. Right-click them and choose the "step over" option to try 
and get past them. 
The Tracker 

Once you've found your way to the Elf Camp, speak with Lord Iowerth. He wants you 
to find his Tracker in the lands to the south. Head south until you find the 
Tracker, who thinks that you're one of Tyras' men. Go back to Iowerth to get a 
pendant to show to the Tracker again. He will tell you that Tyras' men have moved, 
and that you'll need to search for footprints to the west.

Once you've searched them, you'll be able to pass through Dense Forests. Cross 
through the nearby Dense Forest and you'll be attacked by Tyras' (level 110) Guard. 
Kill him and proceed, but be sure to watch out for Trip Wires!

Carefully walk to Tyras' Camp and speak to General Hinning. Pick up as many Barrels 
as you can hold, and if you have Limestone with you, grind it with your Pestle and 
then use it on the Furnace in the eastern part of the camp. You can also buy food 
and Halberds (Dragon isn't available until you finish the quest) from the General 
Store. After speaking to the General, head back to the Tracker.

Talk with him, and while you're there, use your Barrel with the swamp to the south 
to get a Coal-Tar Barrel, and then take some Sulphur and crush it with your Pestle. 
Go back to Lord Iowerth, and he will give you a Book O' Bangs with steps to making 
an explosive: 

Sulphur - found south of the Tracker, must be crushed with a Pestle. 
Quicklime - get some Limestone from the mine northeast of Varrock (on the way to 
Canifis) or northeast of Tyrannwyn. Use this with a furnace and then ground it up 
with a Pestle while holding a Pot. 
Also be sure to have your Coal-Tar Barrel. Teleport and bank everything, withdraw 
lots of Coal, the barrel and your book and go to the Chemist in Rimmington. 

Making Naphtha

Talk to the Chemist and then pour the Coal Tar into the Distiller on the table. Put 
some Coal inside and the heat will increase. When the heat level turns green, turn 
the right valve on. If the pressure goes over the green level, turn the left valve 
on. Don't let the pressure get too low, so be sure to close the valve when it goes 
below the green level. Do this until the Coal-Tar is distilled (the bar is 
completely green). Now add the ground Sulphur and Quicklime, and now you have a 
Barrel-O-Boom!

Just Add a Catapult... 

Get back to Ardougne and bring some food, your Bomb Barrel, 4 Balls of Wool, Bow 
and Arrows, Hatchet and Tinderbox, Spade, Rope, money to buy a Halberd, and  
Antipoison Potions. You don't need any armor here. 

Go through the Underground Pass again, go to the Elf Camp and use your 4 Balls of 
Wool with the Loom in the tent west of Iowerth to make a Cloth, and then use it on 
the Barrel. Go to the Catapult near Tyras' Camp, talk with the Guard and give him 
some Cooked Rabbit. Quickly use the Catapult and Tyras' Camp will be Destroyed! 

Go into the camp and try to enter Tyras' ex-tent. The guards are all saying that 
he's dead, and that they must prepare for the oncoming darkness. Talk to the 
Tracker on your way out, and then go back to Lord Iowerth to give him the news. He 
gives you a Scroll and access to the Arandar Gates leading to the Gnome Stronghold! 
Head back to the king by either teleporting or taking the gates.

Once at King Lathas' gates, you'll have a visit from an Elf. A surprise shocking 
message you're carrying. After speaking to her, speak to Lathas. Quest Complete!


Rewards

15,000gp 
13,750 Agility experience 
Ability to pass through the Arandar Gates to Isafdar. 
Ability to buy (and wield) Dragon Halberds from Tyras' Camp 
3 Quest Points