When you were a child, what were you afraid of? Monsters under the bed? Something that would come in the night and carry you away?
Or, perhaps, there was a really creepy character or doll that lived in the house and invaded your dreams - just like the Disney one depicted in this album cover. Disney stories could be terrifying. Why did they often kill their protagonist's parents in the first 10 minutes?
Or, did your nana tell you horrible stories that terrified and kept you awake at night?
Write about a childhood monster, or recurring nightmare.