'Achtundvierzig

Über

'48 is a 1996 alternate history horror novel by British horror author James Herbert. The book follows an American pilot stranded in a dystopian London after Hitler, moments before being completely defeated, uses a biological weapon in the shape of V2 missiles, that wipes out the human race with the Blood Death - aside from those who suffer the Slow Death and those with AB blood type.
The story is written in first person from the viewpoint of the American pilot, Hoke, and tends to ramble in his thoughts which sometimes leads us to question his sanity - even he suggests several times that he may not 'have all his marbles'.