You should introduce footsteps into the background. Someone you can hear but can't see, maybe two or more people standing behind you, whispering to each other. Maybe you can barely hear them, but can pick out a few key words from what they're saying. Talk about your fear as you wonder what they're going to do to you. Maybe one of the words you hear really pricks at your fears. But i like it so far. Work on the story and then fix up the grammar.