For a long time, I was scared of the Eye of Sauron (my mum had been 阅读 Lord of the Rings to us) and demons that would open up a bottomless put beneath my 床, 床上 and pull me down it.
Skeletons 'n' stuff like that. People with no skin. I had nightmares about running through an empty workshop with those things chasing me and it sort of leaked into real life and I heard things and I saw stuff while I was awake and I heard things as well, like the bedroom door closing even though I knew everyone was asleep.