If an ancient prophecy is right, Michael “Barney” Chandler has just got the most important job in England. The 56-year-old former Royal Marine is the new Ravenmaster at the Tower of London, responsible for looking after the feathered protectors of the 1,000-year-old fortress. According to legend, if the ravens leave the 11th-century tower beside the River Thames, its White Tower will crumble and the Kingdom of England will fall. In the 17th century, King Charles II was told of the prophecy and decreed that there must always be six ravens at the tower. “We take that responsibility very seriousl…