These violent delights
(Book)

In 1926 Shanghai, eighteen-year-old Juliette Cai, heir of the Scarlet Gang, and her first love-turned-rival Roma Montagov, leader of the White Flowers, must work together when mysterious deaths threaten their city.--,Provided by Publisher.

Shanghai, 1926. A blood feud between two gangs runs the streets red, leaving the city helpless in the grip of chaos. Juliette Cai, a former flapper, has returned to assume her role as the proud heir of the Scarlet Gang, a network of criminals far above the law. Their only rivals in power are the White Flowers, who have fought the Scarlets for generations. And behind every move is their heir, Roma Montagov, Juliette's first love-- and first betrayal. When gangsters on both sides show signs of instability culminating in clawing their own throats out, there are whispers of a contagion, a madness, of a monster in the shadows. Juliette and Roma must work together, for if they can't stop this mayhem, then there will be no city left for either to rule. -- adapted from jacket

Ages 14 up.,Simon Pulse.