Pa'agrio Lord Kakai:
Lord Lewin Waldner of Gludio Castle is an old friend of mine, but I can't abandon my duties here to go help him. Since I can't go, I'd like to send someone I trust. You.
You can head right over there. Just go to the Center of the Town of Gludio, through Gatekeeper Melia (who's by the left museum path). Once you arrive, go see Captain Bathis and give him this letter of introduction. He'll be able to fill you in on the latest Sakum sightings.
May the Flame of Pa'agrio follow you, always!