Although only some thirty square miles in size, the Isle of Sheppey, which is situated off the coast of Kent, is one of the oldest and most atmospheric locations in Britain. Its windswept marshes and rugged coastlines provide ideal habitat for a diversity of wildlife and the island boasts some very old buildings. But these fog-enshrouded marshes and ancient structures also harbour several unnerving ghost stories; all manner of apparitions have been sighted or rumoured here - from spectral smuggl