wlmartin
Explorer
Courier? Contacted via ritual (Animal Messenger, Spirit Fetch, Sending, etc.)? Already knows about another job offer and after seeing how this one is going, decides it isn't as good an opportunity as the other? Plenty of ways it could be accomplished, even far from civilization.
I suppose
Its a tough one, I dont want it to be dramatic but then I dont want it to be a case of "poof" hes gone
Was going to have him switch sides but then there is more pressure on our DM to make space for him in a future encounter.
If we were close to a town, id say its feasible or between encounters... ideally looking for that magic idea that makes the lightbulb above my head go "Bing!" and sounds just right for this situation... perhaps there isnt one!