[header] How to complete the plague city quest in runescape [title] Gather the items in the " things you'll need " section. [step] It will be a big help to get things before you start the quest to avoid going in and out of ardougne. Some of these things can be bought or found around runescape. 
[title] Go to the northwest corner of ardougne and find edmond. [step] Talk to him and he'll tell you that elena, his daughter, went to investigate a plague in west ardougne.