Hi! One of the developers here, thank you so much for playing our game!
The tutorial section was one of the last pieces we implemented so there are some (very) late-night considerations that eluded us. Once you've completed the full interaction with the hooded figure, you can return to and interact with the campfire to continue on to the game. The purpose of Wiggle (and the 12 other runes scattered across the map) will be clear!