The China Bride: The Bride Trilogy, Book 2:

A lord yearning for adventure and a lonely woman longing for a home... The daughter of a Scottish father and a Chinese mother, Troth Montgomery grew up in Macao fluent in the language and culture of both parents, but her father's sudden death condemned her to a shadowy life as an interpreter in Canton. Then Kyle Renbourne, viscount and adventurer, discovers her true identity and persuades her to be his guide for a dangerous journey into the heart of the Celestial Kingdom. For Kyle, Troth is...