Word of a secret meeting among the dwellers of Udûn has reached the Foothold camp.
'A most intriguing riddle has come to us. Perhaps a riddle of great importance. Who can say? A dying Nurnhoth - those are the Mordor slave-men, you see - told us of a secret plan among the forge-labourers of Udûn. Stranger still, it is all arranged in a voiceless code!
'The poor soul could tell us little else before he passed, save that the plan should take place soon.
'How inconvenient that our Captain has not returned and that he left clear orders that we were to hold the camp until he did! No, Mulnír, I do not think he is lost or in peril. I fear what this plan will be. I fear that it will come and go before there is any chance to find it out. And what will happen if it does?
'Ah, good ${RACE}, you will unravel this riddle for me, won't you? Someone must!'
You should talk to Barathron in the Foothold camp in Udûn to learn more about the riddle he wishes to solve.
You should look for signal flags in the western half of the Udûn basin.
The Nurnhoth slave is lying on the southern edge of the Udûn basin, up atop a wooden structure.
You should return to the slave of Nurn you found by the signal flag.