1. Pick up the sledgehammer end on the top left of the door.
2. Pick up the first part of the stethoscope on the bench.
3. Pick up the knife on the table, then zoom into the table.
4. Pick up the second part of the stethoscope. Use your knife on the top left edge of the painting to get the third part of the stethoscope.
5. Go to the safe in the corner of the room. Pick up the handle of the sledgehammer to the left of the safe.
6. Combine the two sledgehammer pieces. Combine the three pieces of the stethoscope.
7. Use the stethoscope on the safe. You should see a box with 4 bars. Now turn the handle left 3 times, right 7 times, left 6 times, and right 9 times to open the safe. You should see the bars unlocking each time.
8. Pick up the item in the safe.
9. Go to the sword in the rock and put the item you got in the safe into the hole.
10. Hit it with the sledgehammer to get the sword.
11. Use the sword to cut off the lock on the door.
Hit like if this walkthrough helped you! Thanks :)