I've been trying to do this quest for a long time and I am now level thirty.
Spotted him in the water on the southern Vashudheim beach. Auto followed him east and then north under the bridge about a hundred yards north. He then reversed and headed back south and skirted the entire Vashudheim southern and western coast until on the west beach. Turned left and headed west to the escaped thane island. Turned left and circled the east and south beach of the west thane island and then headed south to water strider island's north and then east coast. Then headed east southeast to skirt the coastline east of the bay of water that is east of the tonte camp. Then turned east and walked along the beach where the crabs were at. I defended him to make sure he didn't die. Then he headed north back to vaughn heim. Went under the bridge but this time kept going, climbed up into vaudeheim and stopped on land on the northeast part of Vashudheim. I took advantage of his pause to start dictating this Post via my phone when he then turned and headed North to the portion of the map where the word Jordheim is written. Then turned left and walked West along that beach. Then reversed and walked back East back into the water. And then back up onto Vashudheim island where he paused for a long time, again, in the same NE part of the town. After this second long pause he headed east, into the water, south under the bridge and appeared to be heading to the crab beach, as if walking his route in reverse. I had to go in RL so stopped there. Sorry for any bad formatting, using voice to text on phone and the font is tiny. (Rabe, March 2024)