天才逃犯 [The Genius Escaper]

Alfred George Hinds, a well-known British criminal, is known as the genius prisoner. Because of his successful escape from two different high-security prisons during 1950-60, the police could not even find any clue or damage in his cell. It is still a mystery now. In 1953, he was taken into custody in the highest security prison located in Nottingham. It was heavily guarded and the structure is very complicated. One night, he suddenly disappeared from the cell. How could he escape from prison? Can you solve this mystery?