In this fifth volumn, Battle of Britain: Target London, Dilip continues to examine the fighting on a day-by-day, combat-by-combat basis from 7 September to 17 September 1940.  It was on 7 September that the luftwaffe changed tack, and instead of continuing its successful stikes on 11 Group and its airfields, swiktched its focus to the round-the-clock bombing of London.