Over the past decade, China has placed more and more restrictions on the lives of its citizens — tightening its hold over what people can do, read and say. When Bei Zhenying’s husband was arrested and sentenced to seven years in prison for “smearing” the country’s political system, she was left to pick up the pieces of his life. She now believes that her husband was the writer behind one of the most mysterious blogs on the Chinese internet, which for 12 years had ridiculed the ruling Communist Party from within the country. Vivian Wang, a China correspondent for The Times, tells the story of the couple.