The following steps will get you through the house to be able to enter the answer:

1. Approach House
2. Go down the corridor.
3. Continue down corridor
4. Go into bathroom
5. Look at mirror
6. Back & leave bathroom
7. Go to rear of house
8. Go to the kitchen
9. Click on scrap of paper.
10. Leave the kitchen
11. Go to dining room.
12. Click sideboard and get box.
13. Leave.
14. Go back along the corridor
15. Go to the front hall.
16. Go to the parlor.
17. You should now have the puzzle enter point with the hints.
18. ANSWER: 2148