Appearance vs. Reality

Characters and situations often deceive, from the respectable solicitor Barrett leading a double life to the seemingly innocent Dr. Martincole involved in nefarious activities, highlighting the gap between outward respectability and hidden truth.

The story of Samuel Barrett, a respected solicitor who led a double life as a gambler and embezzler, highlights the theme of deceptive appearances, which is central to the novel's plot.

Ashton appeared to be a wealthy, active man, but the circumstances of his death and the lack of knowledge about his past suggest a hidden reality.

Ashton appeared to be a quiet, domestic man but secretly frequented a tavern and carried a fortune in diamonds.

The seemingly ordinary Japanese cabinet is actually a heavy, locked container with a secret mechanism, contrasting its innocent appearance with its hidden purpose.