Follow our crystal clear walkthrough and helpful tricks to get you through the rough spots!

Apply the GLUE to the mirror (O); put the MIRROR SHARDS on the mirror.

Play the mini-game.

Solution: (P).

Go through the mirror.

Take the NEEDLE (Q).

Remove the wallpaper and insert the NEEDLE between the planks (R); take the CHISEL (S) and the BOOK (T).

Go to the Secret Hallway.

Open the crate with the CHISEL (U).