THE YELLOW "M"
15,90€
London's walls resound with the incredible exploits of the "Yellow Mark" : No one seems able to stop him. The Home Office asks Captain Francis Blake to solve the mystery and discover the identity of the man who hides behind the Yellow Mark. The captain immediately takes as partner his old friend, Professor Philip Mortimer, whose scientific knowledge will be invaluable in solving this extremely complex enigma.
Who hides behind the Yellow Mark ?