Irish-Canadian author Emma Donoghue is perhaps best known for her novel “Room,” told from the perspective of a 5-year-old boy held captive with his mother. Most of Donoghue’s work, however, is rooted in historical fiction. She frequently writes about characters and perspectives that are often erased from history. Her latest novel, “The Paris Express,” tells the story of a fateful disaster on a French train in 1895. Donoghue spoke to OPB’s Crystal Ligori in front of an audience at the 2025 Portland Book Festival.