Scoundrel's Kiss. Medieval Scoundrels, #2

When it comes to temptation, rules are made to be broken... Turning his back on his old life as a rogue, Gavriel de Marqueda has joined a monastic order in Spain and taken a vow of chastity. Before he becomes a monk, he must pass one final test: help a woman who has lost her way. But when he  lays eyes on Ada of Keyworth, he is tempted beyond measure by her sultry beauty and alluring vulnerability. Far from her home in England, Ada has been pushed to the brink by an addiction to opium.
When she discovers that her only friend has abandoned her, she has no choice but to grudgingly accept Gavriel's help. But Ada is not fooled. Though Gavriel wears the robes of a monk, Ada sees a virile man who regards her with a hunger that matches her own-one that begs to be satisfied again and again. "Carrie Lofty writes adventure romance like a born bard of old." - RT Book Reviews