well they will give it back
Access to West ARdougne is enabled during the quest Biohazard.
you have to do the plauge city quest, and biohazard, but during both of those quests you get in, but not though the gates
In my opinoin Its not.... but for some other people it is....
Go to the people that it says in your quest quide...
It's currently not possible to undo a quest in RuneScape.
The legends quest on runescape is not gone, I suggest that you check again.
The reason simply is, that Jagex doesent want people to help the people doing the quest, (Sal's Realm, Runescape Wiki, ect.) so they keep changing it. It has been changed 19 times on record.
A quest on Runescape is an adventure that puts you in a conflict, you solve it and you get rewards like money, skill experience points, quest points, and items.
Hero's are located at Ardougne market, you can get there by teleporting with two law and two water runes after compelting the biohazard quest, or by teleporting to camelot (one law, 5 airs or camelot teleport tablet) and running south-west.
If you quit runescape...
There are many websites where one can get advice on completing a Runescape quest. The Runescape website itself offers advice as does the website Tip.It.
The quest is called "The Chosen Commander".