Must have completed Plague City Quest

1) Talk to Elena, she is located in Ardougne across the street from her parents house(East). Elena will tell you that her distillator has been stolen and the tunnel is blocked, agree to help her and accept her quest.

2) Elena will tell you to find a man called Jerico, he is located North of the bank in East Ardougne.

3) When you have found him, talk to him and he will ask you to find Omart, before you leave pick up a pigeon cage and search his cupboards to find some bird food, this will save you a lot of time later on. Omart is located West of Carnillean Mansion.

4) When you have found Omart, talk to him and he will tell you that everything is ready but he can't risk it with the watchtower so close. He will tell you to go back to Jerico, but instead get the pigeon cage and bird food from earlier and head to the watch tower which is North of Omart and next to the closed city gates.

5) To use the Bird Food you will need to stand in the corner by the east and South Barracks, then use the Bird Food on the Watch tower and open the pigeon cage, the mourners will now be distracted and wont be focusing on you.

6) Go and talk to Omart, then go to West Ardougne by using a rope. Once inside West Ardougne, go to the North East building and get your rotten apple, you can find one North West of this house. Climb over the fence and and use the rotten apple on the cauldron, now try and open the door, when you do a mourner will appear and say that he needs a doctor as some of the mourners are ill.

7) Now you need to go to Nurse Sarah's house which is located, which can be found South West of the Monastery. Go in her house and search the cupboards, you will find a Doctor's gown.

8) Now head back to the Mourners house and put on the Doctor's gown. When you get to the mourners house, open the door and the mourners will let you in. Head upstairs and open the door, select any speech option you want as he will attack you anyway, after you have killed him, he should drop a key(it will appear in your inventory), if he doesn't then kill the other mourner.

9) When you have the key, use it on the gate and then you should find some crates, search them all until you find the distillator.

10) Now get out of the house and go to the South East corner of the plague city and tell Kilron you want to go back. Now go to Elena's house and talk to her. She will give you some filled vials(keep these on you at all times), she will also need you to get her some touch paper from the chemist and smuggle the vials into Varrock by using the chemist delivery men (Don't Teleport or the vials will break and you will have to go back to Elena and get a new one).

11) Head to the chemist, which can be found West of Rimmington. Once in the chemist, talk to the chemist. Don't tell her anything about the plague otherwise she will take the vials off you and you will have to go back to Elena and get some more. Tell the chemist you are one of Elena's friends and tell her you need the touch paper for Guidor, you will get the touch Paper

12) Now you need to give the vials to the delivery men, there are 3 delivery men, and you must give each one these:

- Give Chancy the liquid Honey
- Give Hops the sulphuric broline
- Give Da Vinci the Ethanea

They will tell you to meet them in the the Dancing Donkey Inn, which can be found in the South East corner of Varrock.

13) Head to the Dancing Donkey Inn in Varrock, when you get there a Guard should search you, now go inside and talk to the Delivery Men. Now go to Guidor, who can be found South East of the Dancing Donkey Inn.

14) When you get to Guidor's house talk to Guidor's Wife, she will tell you she needs a priest, put on your priest gown or go next door to the fancy dress shop and buy one(Top and Bottom).

15) Now talk to Guidor's wife and she will let you in. Go over and talk to Guidor, tell him you are here because of Elena and give him all the vials, he will tell you there is no plague.

16) Head back to Elena and tell her there is no plague, she will tell you to inform the king of Ardougne.

17) Go to Ardougne palace and go upstairs, talk to king Lathas and he will reward you.

You have completed Biohazard

You are awarded:

3 Quest points

1250 Thieving XP