The cold is creeping in on you. A slight ache starts at your feet. Your calves ice and your thighs freeze. A chill makes its way slowly up your spine, slowly slowly until it reaches your neck and it's gone. The room has fallen silent and the windows frost over. You know it is summer, but you've never been colder. The heat should be rising, but it only falls further and further. Do you understand yet? Do you know what has happened to you? No there is not a ghost in the room, ghosts don't exist you idiot, someone touched the thermostat. Go change it back before you get a chill.