The Investigation of Alice’s Murder
The A.B.C. MurdersThis thread follows how suspicion shifts from Franz Ascher toward a stranger as investigators examine the crime scene and the planted railway guide.
increasing
Bearing strength in each event
decreasing
A Convenient Suspect

Franz Under Suspicion
A threatening husband
Franz Ascher has threatened Alice and is found hiding near the railway. His drinking and hostility make the local explanation seem persuasive.
Doubt remains
The anonymous warning and Franz’s shaky condition complicate the case. Inspector Glen hesitates to treat the obvious suspect as conclusively guilty.
The Unnoticed Entrance

A Busy Street
Contradictory sightings
Neighbors report multiple strangers, but their accounts are confused and unreliable. The street’s evening bustle allows an unfamiliar visitor to vanish among ordinary movement.
A method of inquiry
Poirot provokes conversation rather than asking direct questions. The tactic reveals how attention and memory distort what witnesses believe they saw.
The Guide on the Counter

A Deliberate Object
No useful prints
The railway guide has been wiped, suggesting that its placement was deliberate rather than accidental. Poirot treats its absence of fingerprints as evidence in itself.
A public signature
The guide announces the killer’s supposed system. It points toward an elaborate performance instead of explaining the motive for Alice’s death.
The Husband’s Alibi

Franz’s Account
A rough evening
Franz claims to have spent the evening drinking with acquaintances. The companions are unreliable, but his condition and behavior do not fit the polished letter writer.
A first reassessment
Poirot sees reasons to doubt that Franz authored the warning. The gap between the husband’s visible brutality and the murderer’s elaborate staging widens.
A Crime From Outside

The Local Theory Falls
A stranger’s design
The later killings confirm that Alice’s death was part of a wider-looking operation. The railway guide was an imposed clue, not an object of her life.
A victim selected
Poirot eventually learns that Franklin Clarke chose Alice as the first letter in a false sequence. Her murder was designed to attract attention away from another crime.
June 22, 1935, after the discovery
June 22, 1935, during witness interviews
June 22, 1935, at the shop
June 22, 1935, during questioning
After the third murder