Thanks for your feedback!
Yeah, I realize that after playing a few times. It would have been better to add some audio or visual clues and some cutscenes. Originally, I wanted it to be a castle infiltration but I didn't have enough time to draw all the required sprites. So I had to settle for a camp.
UI is definitely an important element that I missed. Sorry about that.
If you're interested in completing it, just head north-east more-or-less.