A pair of Castles on the Great Western Mainline - just as it should be. Wait a minute though, something's wrong here, these aren't steam and they've got GM engines! They may not be proper Castles, but this is a noteworthy daylight working for the First Great Western sleeper coaching stock. 57602 Restormel Castle & 57603 Tintagel Castle pass Compton Beauchamp in terrible light on 30 June 2011 with the 5Z30 11:15 Old Oak Common to Old Oak Common ECS, heading back to London from Bristol.