Must it be solo'ed?
Specifically, the Ciar Advanced.
Can a person bring someone else to help 'em?
I'll find the answer and get back to you.
Edit: kk Found some information. That version of Ciar Dungeon is part of the Song of Partholon quest. The same rules apply to both Song of Partholon and Neamhain's Memorial.
You'll have to solo both missions.