Pennington’s Financial Trap
Death on the NileAndrew Pennington’s questionable finances give him a motive and lead to an attempted killing, but Poirot separates that danger from the actual murder conspiracy.
increasing
Bearing strength in each event
decreasing
A Trustee’s Position

Control of a Fortune
A trusted role
Andrew Pennington serves as a trustee for Linnet’s substantial inheritance. He has access to financial decisions while she is still young and is accustomed to presenting himself as a longtime family friend.
A hidden vulnerability
Linnet’s sudden marriage changes the timing and control of her affairs. Pennington’s authority is threatened just as his own finances are becoming unstable.
A Sudden Voyage

The Journey to Egypt
A rushed decision
Pennington learns that Linnet has married and will travel in Egypt. He arranges to meet her there, presenting their encounter as accidental despite having received her news before leaving New York.
A questionable explanation
He later claims he came to investigate a possible English fraud. Poirot is unconvinced, and the false account makes Pennington’s presence on the honeymoon steamer look calculated.
The Documents

Signatures Sought
A business meeting
Pennington brings Linnet legal documents to sign while she is aboard the steamer. She reads each paper closely rather than trusting his assurances.
The plan checked
Simon’s casual claim that he signs without reading prompts Fanthorp to interrupt and praise Linnet’s care. Pennington abandons the attempt, revealing that the documents mattered more than ordinary honeymoon business.
The Boulder and the Confession

A Desperate Opportunity
Motive and action
Poirot connects Pennington’s financial position to his attempts to gain control over Linnet’s signature. Pennington’s lie about being inside the temple when the boulder fell exposes his connection to the near-attack.
Limits of the admission
Pennington admits financial misconduct and attempted murder but denies killing Linnet. Poirot concludes that he is capable of a desperate attack, not the precise and audacious conspiracy that followed.
A Motive That Misleads

The Wrong Financial Culprit
A convincing suspect
Pennington has a strong motive, a false story and access to a revolver. His conduct helps explain an attempted attack and the shooting of Salome, but it does not account for the full sequence.
Poirot’s distinction
Poirot rejects a theory merely because its motive is persuasive. The actual killer needs speed, boldness and exact timing that Pennington does not possess.
Before Linnet’s marriage
After Pennington learns Linnet has married
During the voyage up the Nile
After the boulder attack is reconsidered
Near the end of the return voyage