Unexpected vampires at dawn.

I wake up. It's still dark outside. It wasn't the alarm clock that woke me up. It was some voice inside me whispering: "DANGER... DANGER..." I look around the room apprehensively, the blood in my veins running icy cold. Perhaps some maniac has sneaked into the house and my instinct shook me up. But everything seems to be all right. The street lamp outside my window is off and I can't see very well, but also I don't feel any presence. I look at the clock. Twenty past five. Damn! I could have slept another hour, at least. Now I have to leave my bed in the dark. That stupid feeling of sneakin…