This, the 1,000th UNION JACK story, has been specially written for this issue. It introduces the following characters:
SEXTON BLAKE, TINKER, Mlle. YVONNE, ÒUncleÓ GRAVES,
versus
Dr. HUXTON RYMER, THE THREE MUSKETEERS, Prince WU LING, MARY TRENT, The BLACK DUCHESS, LEON KESTREL, ZENITH the ALBINO, GEORGE MARSDEN PLUMMER, Professor KEW.