We found Philip Carlier by a campfire on the east side of the swamp, though he ran away as we approached. There are a number of enemies standing guard, though you should be able to easily sneak past them or pick them off with your bow. Once you're back in reality, you'll need to search Lagras swamp to find the real Philip Carlier. The wild man will repeatedly sprint towards you to attack, but don't worry about shooting him as this is only an illusion so you won't affect your ability to bring him in alive. This bounty starts with you finding Philip Carlier at his camp in the swamps, but straight away you'll be drugged and enter a trippy sequence.