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BiohazardUpdated: 25-08-2019 04:48:50


After her capture, Elena is still studying the spreading plague of West Ardougne and needs your help. What lengths are you willing to go to discover the truth about this disease?

Quest Start Information
Start point

Talk to Elena in her house in East Ardougne. She lives right across the road from where you started Plague City


Must have completed Plague City
Level 33 magic for Telekinetic grab, or level 31 with a wizard's mind bomb.

Items needed

(hover over picture)

Quest Points

3 Quest points
King lathas Amulet
Use of the Combat Training Camp
Ability to travel freely through the east and west Ardougne
Thieving experience according to this formula: XP = lvl * 50 + 500 where lvl is your level in thieving, and XP is the experience rewarded.



STEP 1: Talking to Elena

To begin, go to East Ardougne and talk to Elena in the house just east of the house where the Plague City quest begins.

She will tell the player about how she was able to collect some good samples of the plague, but unfortunately the Mourners took all of her equipment. She now needs someone to sneak back in to try to find it.

Elena location:

STEP 2: Getting back to the plague city

She suggests that the player should go talk to Jerico, since the tunnel used to get in before has been sealed off.

Jerico lives in a house just south of the northern bank in Ardougne and just north of the church. He tells the player that he has arranged for Omart to help create a rope ladder to get over the wall. He will tell the player to go find Omart. Search the cupboard nearby to find some bird feed and grab some messenger pigeons from the back yard before you go.

Omart is found west of Ceril Carnilleans house in East Ardougne, just south of the castle. He is located outside of the south-east corner of West Ardougne's walls. He will tell you to talk to Jerico. (You only need to do this if you didn't pick up a cage and feed the first time you spoke with him).

Now head to the Watch tower, directly north of Omart. Use the bird feed on the Watch tower.

Next, open the pigeons cage to release the pigeons. They'll immediately fly into the tower to eat the bird feed. This will distract the guards.

Go south to Omart and talk to him. He'll help the player get over the wall.

Omart location:

STEP 3: Getting to the plague city again

Head to Martha Rehnison's house first used in Plague City. It is located to the north of the dungeon in the middle of West Ardougne.

Pick up the rotten apples on the east side of the house. Now Right-click to use the rotten apples on the Cooking pot east of the rotten apples spawn. Accidentally eating the rotten apples does not cause damage.

Walk around to the front of the building, and attempt to go inside. The player will not be allowed in because several mourners are ill with food poisoning, and they are waiting for a doctor.

Head to Nurse Sarah, who is in the building south of the office building. Search the cupboard in her house to obtain a Doctors Gown. Equip the Gown and go back to the house with the Cooking pot. The medical professional attire will allow the player to enter freely. The Gown must be equipped each time the player needs to enter the headquarters.

Go upstairs and either talk to the level-22 Mourner or attack him while still wearing the Doctors Gown. Kill him and a bronze key will automatically be placed in the player's inventory.

Use the key on the gate to get inside the room. Search the crates to find Elena distillator. Exit the Mourner Headquarters. Head back to Omart at the south-east corner of West Ardougne. Kilron will help the player get back over into East Ardougne. Go to Elena and give her the distillator.

Nurse Sarah location:

STEP 4: Transporting the plague sample

Elena will extract a plague sample, but the results of her test are strange. In order to get further results, she needs some help from her mentor, Guidor. Elena will give the player a plague sample along with three reagent vials: Liquid honey, Sulphuric broline, and Ethenea.

WARNING: The plague sample and vials are extremely fragile! Doing any of the following (teleporting, dying) while they are in your inventory will cause them to break:

Also note that the sample and vials cannot break while stored in the bank. If you wish to use teleports to save time, bank the items first and retrieve them after you have teleported. If the items break, they can be replaced by talking to Elena again. It might be wise to use the Drop trick to get a second set from Elena and bank it. This prevents the need for a trip back to Ardougne in case of an accident.

Take the sample and vials to the chemist in the western-most building in Rimmington and talk to him. Note: he will be "busy at the moment", unless you have the items in your inventory. Tell him that Elena needs some touch paper for Guidor. Do not choose the dialogue options that mention the plague sample, otherwise he will take it from you and you will have to get another. Once the conversation is finished, you will receive some touch paper.

Note: If you can cast Telekinetic grab and want to save some time, you can skip to the next section.

The chemist will suggest giving a vial to each of his three helpers: Chancy, DeVinci, and Hops. They are located right outside the Chemist's house. They are unreliable, so you must choose carefully who to give each vial to.

Give Chancy the Liquid honey. It is worthless, so he can't sell it on the black market.

Give DeVinci the Ethenea. It is colourless, so he can't paint with it.

Give Hops the Sulphuric broline. It is poisonous and has a foul smell, so he won't drink it.

After giving the vials to them, head to Varrock. Bank the plague sample if you are going to teleport there. Once you are in Varrock, acquire a priest robe and priest gown. Both of these can be bought from Thessalia's Fine Clothes located on the west side of Varrock square for 10 coins. Keep them with you until the end of the quest to avoid having to start again.

Brothers location:

STEP 5: Going through the gates

With the plague sample and touch paper in your inventory, go to the south-east part of Varrock where there is a guard stood in front of a gate near a tea stall. Attempt to open the gate and he will search you, but he will ignore the plague sample and will allow you to pass.

Now, head to the Dancing Donkey Inn and talk to the chemist assistants to get the vials back.

Your inventory must have space for the three vials. Having a full inventory will require you to obtain a new set from Elena.

Alternatively if you have level 33 Magic, you can drop the three vials by the fence near the tea stall, go through the gate and then cast Telekinetic Grab on the vials.

Gates location:

STEP 6: Uncovering the truth

Equip the priest robe and priest gown. Head to Guidor's house in the south-east corner of the gated area. Go inside and try to open the door to Guidor's room, Guidor's wife will stop you but she will think you are a priest and allow you in. Talk to Guidor and give him the vials, sample and touch paper. After analysing the sample, he will come to a surprising conclusion: the sample is harmless. He will say that somebody has been lying to you.

Return to Elena in Ardougne and talk to her. She will tell the player to talk with King Lathas. He is located in Ardougne Castle, just south of Elena house. Talk to the King. Quest complete!