The Interrogation of Colonel Arbuthnot

Colonel Arbuthnot, a friend of Colonel Armstrong, is questioned by Poirot; his stiff upper lip and protective attitude toward Mary Debenham reveal his involvement.

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The Colonel's First Interview

The Colonel's First Interview The Stiff Upper Lip Colonel Arbuthnot is interviewed by Poirot. He is polite but curt. He answers questions with British brevity. He claims he was talking with MacQueen until 1:30 AM and then went to bed. The Pipe Smoker Poirot asks about the pipe-cleaner. Arbuthnot admits he smokes a pipe and uses that type of cleaner, but he denies dropping it in Ratchett's compartment. He has no explanation for how it got there. The Attitude Arbuthnot is clearly annoyed by the interrogation. He does not like being questioned by a foreigner. His disdain for Americans and his sense of honor are evident.

The Second Interview

The Second Interview The Confrontation Poirot calls Arbuthnot again and confronts him about the overheard conversation with Mary Debenham. Arbuthnot refuses to explain, saying it is a private matter. He becomes protective of Mary. The Revelation of Friendship Poirot reveals that he knows Arbuthnot was a friend of Colonel Armstrong. Arbuthnot does not deny it. He says he knew the man and that his death was a tragedy. The Threat When Poirot suggests that Mary might be involved, Arbuthnot threatens him. This shows his deep feelings for her and his willingness to protect her. He is a man of action.

Arbuthnot's Role in the Conspiracy

Arbuthnot's Role in the Conspiracy The Friend's Vengeance Arbuthnot was one of the original planners. He insisted on the jury of twelve. He was a strong supporter of the idea. He took part in the stabbing. The Execution He entered Ratchett's compartment and delivered his blow. He was calm and determined. He then returned to MacQueen's compartment and continued their conversation, providing an alibi. The Aftermath Arbuthnot remains stoic throughout the investigation. He is ready to face the consequences, but he is relieved when Poirot offers the first solution. He can now focus on his future with Mary.

First round of interviews, morning

After Poirot learns of the Armstrong connection

During the planning and execution