Linda Arden's Maternal Grief and Vengeance
Murder on the Orient ExpressLinda Arden, the famous actress and mother of Sonia Armstrong, disguises herself as Mrs. Hubbard to lead the plot to kill Ratchett and avenge her family.
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Bearing strength in each event
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The Grieving Mother

The Grieving Mother
The Loss of a Daughter
Linda Arden, a celebrated actress, lost her daughter Sonia, her granddaughter Daisy, and her son-in-law in the wake of the kidnapping. She was devastated and felt that the justice system had failed. She retired from public life, but inside she burned with a desire for revenge.
The Plan Takes Shape
Linda used her acting skills to create a new identity: Mrs. Caroline Hubbard, a nosy American widow. She gathered the former servants and friends of the Armstrong family and proposed a plot to execute Cassetti. She took on the most dangerous role herself, occupying the compartment next to Ratchett's.
The Disguise
On the train, Linda played the part of a garrulous, slightly foolish woman. Her performance was so convincing that no one suspected her true identity. She even fooled Poirot for a time.
The Night of the Murder

The Night of the Murder
The Execution
Linda Arden, as Mrs. Hubbard, was the first to enter Ratchett's compartment. She stabbed him with a dagger, then returned to her own compartment. She gave the signal to the next conspirator. Each of the twelve took a turn, striking the victim once.
The Cover-Up
After the murder, Linda planted the button from the Wagon Lit uniform and later pretended to find the dagger in her sponge-bag. She also orchestrated the story of the man in her compartment, which served to confuse the investigation.
The Emotional Toll
Despite her resolve, the act of killing took a toll on Linda. She later confessed to Poirot that she had always fancied herself in comedy parts, but this was a tragedy. Her grief-driven vengeance was both a catharsis and a burden.
The Confession and Acceptance

The Confession and Acceptance
The Unveiling
When Poirot confronts Mrs. Hubbard, she drops her mask and reveals herself as Linda Arden. She speaks in her natural, rich voice, acknowledging her role in the plot. She is proud of what she did, but also sad that it had to be done.
The Plea
Linda asks Poirot to let the others go free, taking all the blame herself. She argues that they were all innocent souls driven to justice. Poirot is moved by her eloquence and sincerity.
The Resolution
Poirot decides to accept the first solution, which exonerates the conspirators. Linda Arden returns to her role as Mrs. Hubbard, and the group is allowed to leave the train. The maternal love that drove her to vengeance is finally at peace.
After the Armstrong tragedy, three years before the train journey
During the night of the murder, after the snowdrift
Evening, when Poirot reveals the truth