The Fierce Concubine

Rachel Hawthorne, a street performer, saves Keith Lockwood and marries him as a concubine. She defeats malicious rival concubines, safeguards the legal wife, and uncovers plots involving witchcraft and poison. She helps the madam fake her death to elope with her true love. Later Rachel bears the marquess's heir, seizes household authority, and becomes the legitimate mistress of the family.