Sleepwalking
I had a nightmare last night that I went to visit Herstmonceux castle, but lay down for a minute and fell asleep. I woke up in the dark, and realised that while I’d fallen asleep, everyone had left, locking up as they went. So I yelled for someone to let me out, and got up and started feeling around. Then the ground fell away under my feet (a horrible sensation)…