The Dragon Princess — Gerald Verner

In the tradition of Dr. Fu-Manchu, the Dragon Princess (Princess Yu-Malu) is ancient in age, but young and beautiful in form, vastly wealthy, and dedicated to the downfall of Western civilization. She's assisted by her Corps of Dragonflies, members of the Hung, a powerful secret society. The Princess desires a revolutionary new rocket formula developed by the West--and unless her demands are met, she will use her secret weapon to dissolve the world's gold supply into worthless dust! Only British Treasury agent Anthony Race and his assistant, Katrina Evans, can thwart Yu-Malu's fiendish plot. Previously published as Yu-Malu, the Dragon Princess, under the pseudonym Leslie Thane.