Plas Maru is a great cairn which was reserved for the ancient brenins and their brehur.
'These are sad days for our people, Duvodiad. Those who went before us and guided us for generations are being defiled by those who have betrayed us. I fear that Plas-maru, the cairn of our greatest leaders, has fallen as well, but it may be that you will learn more of the evil there.
'The entrance to Plas-maru lies to the east of here. Travel there and defeat the wights which stand guard outside its entrance.'
Plas-maru lies to the east of Ilar's camp.
Ilar has asked you to defeat the wights guarding the entrance to Plas-maru and put to rest their captain.
Ilar is at his camp, west of Plas-maru.
You should bring word to Ilar of your victory against the wights.