Flak, machine-guns, searchlights, enemy fighters — these the Nazi pilots knew and could handle. These things were dangerous, all right — but they didn’t turn a man’s blood to ice water in his veins, they didn’t paralyse his hands on the controls in utter, freezing terror…

But the new weapon used by the R.A.F. night-fighters — The “Ghost Squadron” — put the fear of death into every Nazi pilot unlucky enough to come within its range.