King Charles II decreed The Tower of London will crumble and the Kingdom of England will fall if less than six ravens are kept within the walls of the century old fortress. In that time, some have gone AWOL whilst others have been sacked. Raven Muninn flew off to Greenwich, eventually returning after a seven day hiatus. Raven George was dismissed for eating television aerials and Raven Grog was last seen outside an East End pub. Legend goes they perform secret aviation intelligence to the Crown.