Li H'sen Chang's dual nature as both master illusionist and Tong operative operating in shadow

In the backstage lull following Li H'sen Chang’s performance, theatre owner Jago lavishes exaggerated praise on the magician’s craft and ventriloquism, masking a probing inspection of his secrets. Chang reciprocates …

Under the pretense of assisting the police with a recent disturbance, Li H'sen Chang enters the station in a calculated attempt to conceal his sinister identity. The Doctor, however, sees …