Dinner that night:Again, numerous important citizens of the town are present tonight, but the atmosphere is more relaxed and quiet. Halfway through, the governor quietly passes Johanna a letter, marked from Leosin Erlanthar, the monk you rescued from the cult..
You've already done far more than you ever needed to, but, if you want to help more, or if you want answers, come to Elturel. They may have eyes everywhere, can't say too much now. I have arranged horses for you with Nighthill. Please be here within two weeks.
-LE
It's scrawled in a poor hand, explaining the curt nature of the message: Erlanthar clearly isn't used to writing.
Elturel, the town in question, is a large city, 6 days ride to the north. It's not the size of the major cities on the Trade Way, like Baldur's Gate and Neverwinter, but it's sizable in its own right.
When Arwen asks Nighthill about his old company, the governor launches into storytelling mode:
"So there we were, a priest of Chauntea, a warrior-monk of Selune, a professional thief, and me, a noble's son, head full of dreams of making it big with a writ of venture from the Lord's Alliance. This was post-Spellplague, you see. We were to help restore order where the spellfire had burnt it away. I was our tactician, and made plans that Borin Ironshaft, the thief, disregarded," he recalls, grinning widely at the memory. "Alodia Rhodes, the martial-devote of Selune, she kept the group together through thick and thin." His face falls a little at the memory, but quickly fades, as he moves on. "And you've already met Falconmoon!"
He details their adventures, from fighting twisted bandits, to undead cults, to a climactic battle with a white dragon atop an icy mountain that ending in the dissolution of the adventuring party.