Click, Clack...

DCI Corsten had been called to the new Broadmoor Prison. One of his collars had been acting up, and would only talk to him. Something about a lady in black, they'd told him.

So he was here, prowling the dim corridors. A limerick in his head. "Click Clack. Here comes the woman in black!"

Unthinkingly he nodded at a nurse as she strode past. She nodded curtly in return, an enigmatic smile on her ruby lips.

Cornsten stopped, and turned to see no-one. Nothing there, but the chilling echoes of shoes on the tiled floor.

Click Clack.

Click Clack.