Biohazard

01Back into West Ardougne

1. 1

   Talk to Elena in East Ardougne, west of the shortcut log. The mourners have taken her distillator and the old tunnel has been filled in.
2. 2

   Jerico is in the house just south of the northern bank. His messenger pigeons arrange a rope ladder over the wall for you.

02The Mourner headquarters

1. 1

   The headquarters is in the north-eastern corner of the city. The front door is closed to you, so squeeze through the gap in the fence on the western side into the backyard.

2. 2

   Pick up the rotten apple just west of the fence hole and use it on the stew in the cauldron.

3. 3

   The mourners now need a nurse. Go to nurse Sarah's house south-west of the headquarters, borrow what you need to pass as her, and walk in to recover the distillator.

03Smuggling the sample

Three vials, three errand boys, and each must be given the one thing he has no reason to steal. Getting a pairing wrong costs you a trip back to Elena for replacements.

1. 1

   Take the plague sample to the Chemist in western Rimmington for touch paper. You must be carrying the sample for the dialogue to work.

2. 2

   Give Da Vinci the ethenea — he cannot paint with it. Give Chancy the liquid honey — it is worth too little to gamble. Give Hops the sulphuric broline — it is poisonous, so he will not drink it.

   If you hand out the wrong vial, give the rest out anyway, speak to all three in Varrock, then return to Elena for a fresh set and start over.

3. 3

   All three are outside the chemist's house around a fire.

04Guidor's test

1. 1

   Go to the fenced enclosure in south-eastern Varrock wearing a priest gown top and bottom, and carrying the sample, the touch paper and three free inventory slots.

   The guard at the gate confiscates any vials you are still carrying. Hand them all to the errand boys first or you will repeat the whole smuggling step.

2. 2

   The errand boys are in the Dancing Donkey Inn inside the enclosure. Talk to Hops, Da Vinci and Chancy to get the vials back — a full inventory here means a new set from the chemist.

3. 3

   Take everything to Guidor. His results show nothing, which means there is no plague.

05Exposing the lie

1. 1

   Tell Elena, who sends you to the top of the chain — King Lathas, in the throne room of East Ardougne Castle just south of her house.

2. 2

   He admits the plague is a hoax, says it protects his people from something worse, and tells you about his brother King Tyras. That sets up Underground Pass.