Nine Dragons is the 14th novel in the Harry Bosch series and the 22nd book (21st novel) by American crime author Michael Connelly.

During a slow work night, LAPD detective Harry Bosch is asked to investigate a shooting in a "rougher" section of Los Angeles.

Harry and his partner, Ignacio Ferras, grudgingly take an assignment that would normally be handled by the gang unit and learn that a Chinese-American convenience store owner was murdered behind his own counter.

With the help of Detective David Chu of the Asian Gangs Unit, Bosch starts to zero in on a suspect; he soon receives a threatening call telling him to back off.

Initially ignoring the threat, Bosch then receives a video showing his daughter Maddie being kidnapped in Hong Kong, which he believes to be related to his investigation.

Upon arriving in Hong Kong, Bosch is aided by Maddie's mother, his ex-wife Eleanor Wish, and her Chinese boyfriend.