Nadina, the Russian dancer who had taken Paris by storm, swayed to the sound of the applause, bowed and bowed again. Her narrow black eyes narrowed themselves still more, the long line of her scarlet mouth curved faintly upwards. Enthusiastic Frenchmen continued to beat the ground appreciatively as the curtain fell with a swish, hiding the reds and blues and magentas of the bizarre ~cor. In a swirl of blue and orange draperies the dancer left the stage. A bearded gentleman received her enthusiastically in his arms. It was the Manager.

...

The newly-orphaned Anne Beddingfield came to London expecting excitement. She didn't expect to find it on the platform of Hyde Park Corner tube station. When a fellow passenger pitches onto the rails and is electrocuted,the 'doctor' on the scene seems intent on searching the victim rather than examining him...

Armed with a single clue, Anne finds herself struggling to unmask a faceless killer known only as 'The Colonel' - while 'The Colonel'struggles to eliminate her...