Foreman Mögr, frustrated by Reinn's obstinance about the security of Zelem-melek, wishes to prove to you that the Twenty-first Hall is as safe as can be.
'I grow weary of Reinn's constant fretting. His open complaints are bad for business here, you know.
'How about this: you are new here, and unbiased. Why not patrol the wide hall? If it is free of enemies, Reinn must put his fears to rest.
'I believe this is a fair compromise. If I am right, my dwarves can celebrate their victory without hesitation.'
The Twenty-first Hall is an enormous pillared hall covering northern Zelem-melek.
You should patrol the hall and see if enemies are about.
Mögr is in the Twenty-first Hall of Moria.
You should return to Mögr with a report of what you saw on your patrol.
Reinn is in the Twenty-first Hall.
You should hear what Reinn thinks of your findings.