Crown #2. Macao Mayhem by Terry Harknett. Hong Kong is a hot bed of secrets, and a new gang is using prostitutes and call girls to gather information. Senior Superintendent John Crown and his partner, karate champ Chang Po are assigned the case. When a call girl Crown had helped before turns up dead, they quickly discover there may be something bigger in the works. It’s a case that may involve the Chinese and an American diplomat. The investigation takes them from Hong Kong to Macao. This is the second of the three novels featuring the pair of Hong Kong investigators. Although the third novel is the best in the series, this one has a lot of humor, but not so much of the karate action. Still, a fun story with lots of other action.