A little help needed..
I'm writing a story about a widowed farmer's wife and her blind 22 year old son. They live together on a disused farm in the country with only each other (and a few horses) for company. I'm panning out the psychological basis for the tale which is coming along fine. The story centres around the mother and son forming a sexual relationship but I'd like to introduce the paranormal into the tale too. The blind son is also mildly mentally deranged and suffers the odd hallucination; he relies heavily on the help and support from his mother to survive.
How should I introduce the paranormal? Any ideas? ;)