Poirot Investigates · Chapter
The Adventure of the Cheap Flat explained
Poirot and Hastings investigate a suspiciously cheap flat in Montagu Mansions, rented by a couple named Robinson.
What happens
Poirot and Hastings investigate a suspiciously cheap flat in Montagu Mansions, rented by a couple named Robinson. Poirot's inquiries reveal the Robinsons have been there for six months, contradicting a story Hastings heard. Poirot rents a flat above to spy on them, and learns from Inspector Japp that the flat may be linked to an international spy ring involving stolen naval plans and a woman named Elsa Hardt, who matches Mrs. Robinson's description. Poirot and Hastings set a midnight vigil in the Robinsons' flat to catch an intruder.
Themes in this chapter
Secrecy and Deception
The Robinsons' true identities and the cheap flat's connection to international espionage are hidden beneath a facade of normalcy.
Appearance vs. Reality
The cheap flat appears to be a lucky find but is actually a front for a spy operation; Mrs. Robinson appears innocent but may be a criminal.
Characters to notice
- Hercule Poirot
Leads the investigation into the cheap flat, rents a flat above, and plans a midnight vigil.
- Captain Hastings
Narrates the chapter, accompanies Poirot, and provides the revolver for the vigil.
- Mrs. Robinson
The tenant of the cheap flat; her story about the flat's availability is contradicted by the porter.
- Inspector Japp
Provides Poirot with background information on the stolen naval plans and Elsa Hardt.
- Gerald Parker
Hosts the evening party where the Robinsons' flat is discussed.
- Elsa Hardt
Suspected international spy; her description matches Mrs. Robinson.
Key passages
“So far, in the cases which I have recorded, Poirot’s investigations have started from the central fact, whether murder or robbery, and have proceeded from thence by a process of logical deduction to the final triumphant unravelling.”
Until now, Poirot's cases have begun with a clear crime and moved through reasoning to a solution.
Hastings introduces the unusual nature of this case, which starts from a trivial incident.
“I give it up,” said Parker. “The present occupants must be lunatics with a taste for philanthropy.”
Parker jokes that the flat's cheap rent suggests the tenants are crazy philanthropists.
Highlights the suspicious nature of the cheap flat.
“The official description of Elsa Hardt is: Height 5 ft. 7, eyes blue, hair auburn, fair complexion, nose straight, no special distinguishing marks.”
Elsa Hardt is described as 5'7" with blue eyes, auburn hair, and fair skin.
Poirot reveals that Mrs. Robinson matches the description of a wanted spy.