Darrin Edinhart, and old man.
There’s ruins of the Old Owl Well, an old watchtower, and there’s rumours of undead around it. Someone seems top be delving into the ground under the well or something like that
He suspects dangerous magic in the area.
The party moves on north, and never get around to doing anything about it.
Once in Tempervale after their adventures up north, they hear a towncrier yelling in the streets
"Undead sighting on the borders of Kuzunzan", he cries.
Once asked by Penny, they learn that people haven't been able to make contact with Phandalin lately