Missing Soothsayer ???

[Donnylicious]

So I've defeated the giant spider and Runorm; the quest log says "missing soothsayer" is completed, but the last part "continue searching for Runorm" is not greyed out. Was defeating Runorm the final part of this quest? The quest doesn't seem to have a ending description; just says "continue searching for Runorm" I would figure it should say something like Runorm was defeated, but nope, nothing. Anyone know if there is a final step or someone I have to talk to or is it just like that?