Go back to the Forbidden Forest. Insert the ACORN in the door (Y). The door will open (Z).
Take the METAL BEETLE located inside the wardrobe (A).
Read the MEMO (B).
Give the MUSHROOM to the hedgehog in the Mushroom Glade (C).
Take the BERRIES (D).
Insert the METAL BEETLE into the lock on the door of the Healerâ€™s Hut (E). The door will open.