Passage: Despite Curie's fame as a scientist working for France, the public's attitude tended toward xenophobia—the same that had led to the Dreyfus affair—which also fueled false speculation that Curie was Jewish. During the French Academy of Sciences elections, she was vilified by the right-wing press as a foreigner and atheist. Her daughter later remarked on the French press' hypocrisy in portraying Curie as an unworthy foreigner when she was nominated for a French honor, but portraying her as a French heroine when she received foreign honors such as her Nobel Prizes.In 1911 it was revealed that in 1910-11 Curie had conducted an affair of about a year's duration with physicist Paul Langevin, a former student of Pierre Curie's, a married man who was estranged from his wife. This resulted in a press scandal that was exploited by her academic opponents. Curie (then in her mid-40s) was five years older than Langevin and was misrepresented in the tabloids as a foreign Jewish home-wrecker. When the scandal broke, she was away at a conference in Belgium; on her return, she found an angry mob in front of her house and had to seek refuge, with her daughters, in the home of her friend, Camille Marbo.

Question: Curie fled where when scandal broke?
in the home of her friend, Camille Marbo