Quest in driftwood "the merchant"

[SenMithrarin85]

So I saw a ghost in the top floor of the pub that says some guy is an imposter. I can either kill him or purge the ghost. Would killing the baron have any consequences down the road?

I love this game but the increasing need to know what to do for the best before you do anything is a major headache and fextralife's walkthrough is next to useless.

unlike the linear act 1, act 2 is a massive region with stark differences in enemy strength despite only a small difference in distance between them (as I learned to my detriment when I tried to kill the scarecrows)

If anyone would be willing to give me a general itinerary of where to go and when I'd appreciate it.

[LaserGuy]

You can definitely just kill the imposters. They have some good loot and the ghost may even reward you.

This map should give you a rough guide of what level you want to be in which areas:
https://divinityoriginalsin2.vidyawiki.com/Areas+By+Level#gallery-2