Mad Max meets dystopian London bloodsuckers three years after the Allies lose WW II, in a what-if tale by the author of (among 18 others) the much richer, or at least completely different, Portent (1996). Hitler hits London with his V1 rockets but still finds himself losing the war. So he fires off V2 rockets, which hold a deadly virus that freezes human blood and causes fast death, although some rare victims die more slowly. Only that three percent of the population with AB negative blood survive the virus--so that gangs of slowly dying Blackshirts roam the city looking for AB-negs whose blood they hope to exchange for their own. One of those fighting the Blackshirts as they pursue him is Hoke, an American once with the RAF who now holes up in a vacated luxury hotel, the Savoy.