London: Hodder and Stoughton, 1964. First Edition. Hardcover octavo (19 x 13cm), pp. 159, [1, blank]; red cloth covered boards with black embossed lettering on the spine, dust wrapper designed by Studio Stead.
Shallow ding to head of spine, tail gently bruised; top and bottom edges a touch dust toned; bottom corners lightly scuffed; edges of text block foxed; previous bookseller’s sticker on first paste down and price on ffep; foxing throughout, heavy in sections while some pages are mostly clean or have only occasional spotting; dust wrapper is price clipped with light edgewear, verso is foxed though this is only visible on white sections of the illustrated side of the jacket, back cover is lightly scuffed and marked and previous owner has placed ticks in blue pen next to 19 titles. Item #930
Biggles becomes suspicious when he learns that an ex-R.A.F. officer, with a questionable reputation in the service, is operating an Air Charter Company, making regular flights to Switzerland and the south of France for the Tourist Industry. Investigations by Biggles, Bertie and Ginger, uncover the existence of an International Criminal Network controlled by a shadowy figure known to his operatives as “The Black Mask.” Who is this man who never reveals his face?