Board Thread:The Quarters - Q & A/@comment-50.138.183.105-20140618224002/@comment-24150802-20140619072424

The only way to find who sent the invitation is to ask in the party chat. I'm guessing you've done that and no one has replied.

No one but the person who started a quest can abort it.

However if quest owner does not respond after a day or two, everyone else can leave the party and then form a new party (with the same name, if you wish; it will still be a new party). The new party will not have the old quest in it.

BEFORE you all leave the party, one person in the party should copy everyone's UUIDs to a text file (UUIDs look like this: d904bd62-da08-416b-a816-ba797c9ee265). That person can then boot everyone out of the party (that saves time - you don't have to wait for everyone to leave of their own accord). Then that person can create a new party and use the UUIDs to invite everyone back in. Just make sure everyone knows that you're going to do this before you start. :)