|Seen||A Midnight Train to Kingston|
|Relationships||Finn Hopkins, son|
Appearances and Mentions
- Sadie first appears while looking for her son after the murder, acting desperate and worried. After the constables find her son, Finn falls asleep while Sadie keeps watch over the proceedings with a nervous eye.
- Suddenly, after James Gillies breaks free, he takes her hostage. She explains she went to the back because he "poisoned" her son. However, Murdoch theorizes that she was in on James Gillies' scheme, and warned her that Gillies would kill her whether they escaped or not. However, Sadie is stabbed in the chest with her hatpin and Gillies flees the train. Julia Ogden comes to her rescue to try and stop the bleeding.
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