Surely there was somebody else in the house other than me. Nobody should knock on your door unless it's their own family member. Unless there is someone you love who needs you urgently, you can only expect people to knock loudly and insistently on your door when they are absolutely desperate to see you.

I frowned slightly, putting the key in my pocket as I headed for the door. As I reached for the handle, however, I stopped, suddenly remembering that I didn't actually know how to answer questions like these. I didn't even have a name, just some numbers.

A name, however, seemed unlikely given that nobody in the...