Coughing laughter echoes weakly through the  pièce . look close, in through the  vitre  of this bulb... the filament, a secret tungsten alloy, has twisted in a rictus grin, and is vibrating with spirit laughter. A little joke set up by ghosts who like you, but think it would be better for you if you got a little scare once in a while. Not to worry.     Le récepteur changeait le son en images mobiles des morts, qui pouvaient flotter, libres et vivants, dans l'air.