"Aldrich would probably give you better answers than I on the location of the nest. As for the merfolk, we have a small population of retired adventurers here, many of whom continue to get visits by past friends, beyond that I don't know a whole lot."
The rest of the night is peaceful enough, and the party heads out in the morning after getting directions to the home of Aldric Weatherbomb, the recently settled alchemist who lived a short distance from town. The house is unremarkable as you approach it, and indeed, if you hadn't heard about the man already, you would have no way of knowing his trade or reputation from the house itself. Upon knocking on the door, a decently dressed servant greets you, "How may I help you today?"