Disguise and Deception

The narratives frequently involve characters assuming false identities, such as nuns, servants, or amanuenses, and the use of staged scenes or misleading clues, highlighting the theme that appearances are often deceptive and require careful investigation.

Loveday assumes the role of an amanuensis to infiltrate the household, and the Craven family's claims about Harry's illness are suspected to be a sham.

The Sisters use the guise of a charitable religious order to conceal their criminal activities, and Loveday uses a false identity and deputy to avoid detection.

The plot involves hiding Lucie and stealing her photograph, showing how deception is used to manipulate situations.

Loveday reveals her own deception in sending the daggers to Mr. Hawke to further her investigation. The chapter also focuses on the deception of the supposed Miss Monroe, whose Irish identity is hidden.