Greta Forzane was a party girl whose job it was to nurse back to health the soldiers who had been driven half nuts in the biggest war going.
The soldiers fight by going back in time to change the past: or ahead to mould the future. Already history as Greta knew it had been considerable changed:
The Nazis won World War Two and have an empire stretching from Kansas to Siberia . . .
The American Civil War never occured . . .
The Roman Empire …