The fuse is essential as you need it to activate the staircase button in the attic. So where do you find it? First you have to get the wire cutters, the process is detailed in this guide.
After you have the wire cutters, you need to return to the main location of the house. Go to the kitchen and back to the door you used to enter first. There will be a white cabinet with a chain. This is where the wire cutters come in handy. After breaking into the cabinet, you will find a fuse inside
Now head back to the room with the VCR and fireplace, and place it in the fuse box on the wall. This will activate the switch in the attic.
