Classic Era Robe of the Lost Circle

[Talras]

Sorry if this has been previously asked, but does anyone have a good website that outlines the classic era Robe of the Lost Circle quest? I have completed the Purple Headband and Red Sash quests, but now I am stuck as to what's next. All sites I've found thus far either talk about the Epic quest or killing Bro Z.

Any help and guidance is greatly appreciated!