It was late evening, and Dana could feel the weariness creeping into her bones. She stifled a yawn as she turned to look at the wall clock to check the time. It was ten minutes to her closing time. She heaved a sigh of relief. It had been very exhausting doing both her tasks and Amelia's tasks. She got up and switched off the computers in the office, then she began straightening the papers on the desk so as to know the ones due for disposal.

She was always one of the first to leave after closing hours and Amelia's absence was not about to change that.

The ten minutes...