Not A Dream

They were still taking it as a prank someone had pulled on them until some strange noise beneath the vault captured their attention. The officials were yet to believe what they were hearing when a plank of the floor began to move. They took a few steps back and looked at each other only to confirm that they were not dreaming. 

Moving Plank

They all had their eyes glued to that moving plank when they saw a man emerging from beneath it. The officers were still in their doubts while the man without any efforts rose from the floor. The officers were still struggling to accept it. 

Real Deal

This was happening for real, the man actually was standing amongst them inside the vault in the middle of those gold bars. The heavy security measures installed could not stop him. But the question was how did he manage to do that?      

A Sewer Worker

The man was a sewer worker. How come a sewer worker found the secret way inside the vault? Was their security measures so obsolete? This was the first time when the officers actually doubted their security measures. They wanted how he had managed to pull this off.  

Led By Old Drain

The man explained bit by bit. He told them that he had been repairing sewers on Threadneedle Street that neighbors the institution. He was inspecting underground plumbing when an old drain grabbed his attention. It was then the truth dawned upon him. The man was standing under the vault of Bank of England. The vault that was storing its precious gold. 

Unbreachable

He not only found the vault but also believed that he can easily get inside it. Unsurprisingly, his discovery proved to be a big blow for the directors. They were more than sure that their security system can never be breached.