4th floor

As you remember, the fourth floor is nearly one large empty space. The carpeting remains, as does the suspended ceiling, the toilets and the cupboards next to them, but that’s all.

You slump onto the floor, put your phone in front of you under the torch beam and prise the back off. It’s soaking inside. The battery drips as you take it out. You know from experience that with ideal conditions – putting everything in a bowl of dried rice somewhere warm – takes at least a couple of days. And your conditions are far from ideal. You have to acknowledge that your phone is dead.

You wonder if Metcalf has anything in his annoyingly locked office that might help.

Go back to the staircase.