Does the character Aidan exist or was he cut from the game?
Solution 1:
Found his hut, it's just on the other side of the scratched up road where a yellow lizard walks around, to the left after crossing the bridge on the path to the New Camp. Here's a screenshot of the map with the arrow looking at Aidan's hut:
But his dialogue options are empty (only has "END") so I'm guessing I've already learned every skill he can offer to teach me from the other two characters near Old Camp.