Laurence Yep. The Case of the Goblin Pearls (1997) 179 pp. (Chinatown Mystery #1)
Auntie Tiger Lil Leung, a fading Hollywood movie actress, comes to San Francisco to stay with the family of Lily Lew, her niece and namesake, while organizing a float for the Chinese New Year’s parade. When a street gang called the Powell Street Boys threatens to disrupt the parade and steal the priceless “Goblin Pearls,” Lily and her aunt join forces to solve the theft and stop the operator of a sweatshop in San Francisco’s Chinatown. Along the way, Lily discovers her Chinese American heritage. Juvenile.