The Shanghai Moon

The Shanghai Moon is a Lydia Chin/Bill Smith mystery novel by S. J. Rozan.

Set partially in New York City and partially in the Shanghai Ghetto, the book follows Lydia Chin as she tries to recover a fictional stolen jewel also called The Shanghai Moon.

The main characters, PIs Lydia Chin and her "sometimes-partner-in-crime-fighting" Bill Smith had been estranged since the previous novel, and Lydia had just returned from a trip to California.

Another PI friend of Lydia's, Joel Pillarsky, hired her to help him find a number of antique gems, including potentially a brooch, the Shanghai Moon, which has become the stuff of legend.

When Lydia finds this out, however, there has been a murder, she is fired from the case, and Bill Smith reappears, claiming to have heard of the gem while in the Navy.