Sorry to be a wet blanket, but I had no intention of Mabalar being found in any cell the group could easily get to.
Here's what I was thinking (Let me know what you think.): Mabalar has been taken from his cell to be brought to the temple for sacrifice. Tarik didn't know this because he has been left out of the loop, having been found out by Herugor. Herugor is the one who has instigated the current situation. Mabalar exits from the dungeons into the central chamber of the temple only to discover that his daughter, Marsillion, and somebody else (can't remember off hand) are already being held there.
That leaves Azarmano, Inzillomi, and Thoronmir, to come up behind and discover that the jig is up. Meanwhile, Tarik has head the same clang that they had heard, and rushes back to find that Mabalar's cell is empty. Either the group has released him that quickly or they have also been taken captive. He decides the latter, and gives chase, finding them looking through a small window into the great chamber, their hopes virtually crushed, watching Mabalar, Marsillion, Kataani, and ? being led to Sauron's altar by Herugor and his henchmen.
That leaves three individuals unaccounted for and free agents: Himaran, Tar Miriel, and the guy who sells stuff whose name Mabalar would never forget (

) but I did.
So, what do you think?