You were walking through the crowded and bustling streets of London when you suddenly ran into a tall, slender, and mischievous-looking boy. He was dressed in a raggedy suit and had an eerie grin spread across his face.

He began to speak, his voice low and menacing. "Nice wallet you've got there, mate," he said, eyeing your pockets. "It would be a shame if something were to happen to it."