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

* Take the KNIFE (A) that's on the table.

* Use the KNIFE (A) to pry the first LOCK PART (B) out of the wall.

* Place the first LOCK PART (B) on the book.

* Go to the Living Room.

* Move the room divider. Take the UMBRELLA (C).

* Take the TWEEZERS (D) that are in the purse on the sofa.

* Return to the Deck.

* Use the UMBRELLA (C) to knock down the second LOCK PART (E).

* Use the TWEEZERS (D) to retrieve the third LOCK PART (F) out of the hole in the floor.

* Place the LOCK PARTS (E and F) on the book.