He dug deep into his jacket pocket, and extracted a long, metallic, pen-shaped device with a circular top; a sonic screwdriver. Flicking a hidden switch on it, he aimed the device at the casket. A highpitched whine emanated from the sonic screwdriver. A series of clasps on the box’s lid snapped into place and a bolt slid home, shutting the casket. He adjusted the sonic screwdriver and the casket lid glowed momentarily, vacuum-sealing it.

‘There.’ He pocketed the sonic screwdriver. ‘That should do it.’