Search Alther's Mill for a member of the Bravo Company.
If you and Keeshan are going to defend Lakeshire, we're going to need to find his old battalion. Last I heard all of 'em - Messner, Jorgensen, Krakauer and Danforth - were captured by the Blackrock orcs. Now I don't know where they could possibly be or if they're even alive, but I'd be a damned fool if I didn't ask you to try and find 'em.
Search Alther's Mill, east of here, for any clues.