You seem to be slowly losing your mind. You are no longer a child, and do not believe in witches, monsters under the bed, and so on. But every night you hear something or someone moving under your bed, some kind of grinding, and now the same thing was happening. You try not to pay attention, burrowing your face into the pillow. But now you feel someone's heavy and cold breath on the back of your head. Someone was looming over you, and your heart began to beat like crazy with fear.