Learn more about John's obsession with the castle model | Walkthrough Black Mirror Walkthrough
Last update: Friday, December 8, 2017
Opening the hidden box in the castle miniature
Still in the office, take another look at the castle miniature, seen on the right. Zoom in and set the perspective so that you can see the front of it. Open the wall of the tower. You will see a hole for a key. Open the inventory and choose the master key - add the part you got from Margaret.
Obviously, you have to set the key's parts in the right position. Take a look at the picture above. Part 1 (fixed) and part 3 ought to be parallel. Part 2 goes 90 degrees left, part 5 90 degrees right, and part 4 goes to the opposite side to 1 and 3.
Looking at the key from this perspective makes it easier - just remember that you have to turn the key around to open the lock, so you're kind of looking at a mirror image.
The vision in the office
Another vision will begin - here you will see Edward and little John during what can't be interpreted as anything but a quarrel. There are three interactive points that you'll have to press. Twice on the miniature and once on the boy, when he's right behind his father.
After the vision ends, David will feel dizzy again - you've been here, so you should have problems keeping the dot within the circle. Then talk to Leah. After you do, approach the miniature and zoom on the hidden switch ("interact"), which was revealed during the vision. Leave the office.