A Manuscript of Some Authority
This quest is massively bugged. I accidently picked up the manuscript before getting the quest. Now, in the description it says "The Ancient Tevintor Manuscript Has Some Marvelous Diagrams, But Fre...
Hmm. The manuscript is in the still ruins, and I've read that even if you pick up the manuscript first and then given the quest, you should be able to complete it.
To translate the manuscript you have to go to the war table, and there is a mission you have to unlock/complete. I think its called Translate the dragon script or something like that. And once its done, go back to Frederick.
