When I was coming through arrivals at Heathrow Airport one day, I was struck by the sea of signs bearing names. I wondered – how do the people holding these signs know for sure that the person approaching them really is Michael Smith or Sophie Brown? What if that person was just pretending to be Michael or Sophie? How long would they be able to keep up the pretence? Where could it lead? That’s where my idea for ‘Trying On Tobias’ came from.

I have to admit, I didn’t want to write a horror story at first because… I’m afraid of horror. It’s not a specific book or film that frightens me, more the feeling I know it’ll conjure up inside me. That crawly feeling. I don’t like it.