Middlesex was an English county in the Greater London area. (PROSE: "Extract from 'London's Greatest Ghosts'") Hex acquired his nursing degree from Middlesex. (AUDIO: The Harvest ^[+]Dan Abnett, Main Range (Big Finish Productions, 2004).) Perivale, and Gabriel Chase, were at one time located in Middlesex, but later became part of Greater London. (PROSE: "London's Greatest Ghosts")