Instruction manual
This is the quick guide for Biohazard.
For a more in-depth version, click here.
Biohazard (#38)
Members only? Yes
Release date 23 October 2002 (Update)
Quest series Elf
Official difficulty Novice
Developer Tom W
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Biohazard continues the storyline after the Plague City quest. The plot deepens as Elena finally gets a chance to process her plague samples. Buried under these samples lies a well-hidden secret.


Start point Quest Talk to Elena in her house in East Ardougne. She lives right across the road from where you started Plague City.
Official difficulty Novice
Description This is the second part of an ongoing adventure. Help Elena discover the truth about the infamous Ardougne plague.

Smuggle test samples across Ardougne to Elena's old mentor.

Length Short(With all teleports), Long if you make mistakes


Items required


Enemies to defeat Mourner (level 13)
Elena location

Elena's location

Omart location

Omart's location.

Jerico location

Jerico's location.


Getting startedEdit

Sneaking backEdit

Items required: Pigeon cage, bird feed

Releasing the Pigeons

Creating a distraction.

  • Go north to the small watchtower along the wall, in front of the gates to West Ardougne.
  • Stand in the corner where the two spiked fences meet.
  • Use bird feed on the watchtower fence.
  • Click the pigeon cage in your inventory.
  • Run south from the watchtower and speak to Omart.(Chat 1) after a slight delay. You will be in West Ardougne now.

Infiltrating the Mourner HeadquartersEdit

Items required: None Recommended: Skills necklace(6) (teleport to Fishing Guild) OR Ardougne teleport to quickly return to Elena.
Mourner Tunnels

Mourner HQ is due north-east of West Ardougne.

  • Head around the headquarters to the northern area with the cauldron.
  • Pick up rotten apple.
  • Squeeze through the fence into the backyard.
  • Use the rotten apple on the cauldron. DO NOT EAT IT!
  • Go back through the fence.
Nurse Sarah location

Nurse Sarah's house.

  • Go to Nurse Sarah's house, south-west of the West Ardougne church.
  • Search cupboard in northern part of the house for a Doctors' gown.
  • Equip the Doctors' gown, go back to the headquarters and open the door.
  • Go upstairs and kill a Mourner.

A key will automatically be placed in your inventory.

Getting the touch paperEdit

Items required: Falador Teleport or amulet of glory (optional)

  • Bank the 4 samples Elena gives you. Teleporting with samples will break them, so make sure you bank them before you teleport!
  • Teleport to Draynor Village/Falador.
  • Withdraw the samples!
Chemist location

The chemist's location.

  • Go to the Chemist in south-western Rimmington. (Using the Rimmington Home Teleport will destroy the plague sample!)
  • Speak to the Chemist. Avoid all chat options that state you have a plague sample! (Chat 222)

He will give you the touch paper.


Items required: Liquid honey, etheneasulphuric broline, and the plague sample.

So far, so goodEdit

Items required: 10 coins or a priest gown top and bottom, the plague sample and touch paper.


Items required: The plague sample, touch paper, a priest gown, and an Ardougne teleport (51+ Magic suggested).

Congratulations! Quest complete!


Biohazard reward scroll