The World War II fighter Ace's previously unpublished draft—an account of the "Long Trek" from Normandy into the heart of the Third Reich itself. Having published two of his own books, Wing Leader and The Circle of Air Fighting, Air Vice-Marshal Johnnie Johnson co-authored several more with another fighter ace, namely Wing Commander P.B. "Laddie" Lucas. In 1997, the "AVM" suggested to his friend, the prolific author Dilip Sarkar, that the pair should collaborate on The Great Adventure.