After doing incantation infront of mirror,:
i) Go to the shrine in the forest. (Just visit the area of the minigame, you don't need to play the minigame).
ii) Go to your beadroom and burn the candle you see near the window by clicking on it.
It's not working
It's been a while since I played the game, we might be missing something. There is a guide pinned here,hope it has your solution.
