No Wall Too High: One Man’s Daring Escape From Mao’s Darkest Prison By Xu Hongci. Translated by Erling Hoh Sarah Crichton/Farrar Straus Giroux. — In April of last year, to mark National Security Education Day, a series of posters went up in an alleyway near my home in Beijing. The 16 panels, tantalizingly titled “Dangerous Love,” told the story of a comely Chinese civil servant, Little Li, who meets a Western man at a dinner party.