Deliver the book, "Studies in Spirit Speaking", to Duke Nicholas Zverenhoff at Light's Hope Chapel, Eastern Plaguelands.
A recluse medium found in these parts by the name of Umbranse has provided the Argent Dawn with quite a literary masterpiece... one that amounts to quite possibly the largest collection of jibber-jabber I've ever seen written.
One of the Dawn's most respected leaders, Duke Nicholas Zverenhoff, is a brilliant linguist. Could you take this to him for me - for a reward, of course? Light's Hope Chapel - that's where he's currently at, far in the eastern part of the Eastern Plaguelands.