Sorry to hear you got stuck. Here's the solution, for anyone else stuck on that puzzle. (I agree that it's one of the more frustrating ones - I couldn't solve it either.)
lol. thank you for your map, i finished the game just now. godot is pretty good, game is no bad. i like the mystery music and story, how long have you spent on it?
Cool, glad to hear you enjoyed it! This was a one-month collaboration between the four of us.