Not so mysterious display - it's Agatha Christie!
Source: Shanghai Daily | May 23, 2014.
http://www.shanghaidaily.com/metro/entertainment-and-culture/Not-so-mysterious-display-its-Agatha-Christie/shdaily.shtml.
Wang Rongjiang : An art exhibition called "Queen of the Crime," featuring Agatha Christie crime novels and movies, kicked off yesterday in the Xintiandi Style shopping mall, inside Shanghai's landmark Xintiandi compound. Exhibits, including the author's manuscripts, are on display for the first time in the Chinese mainland. The exhibition will run until June 22. Visitors can participate in interactive activities involving detective skills.