Don't bargain with the devil - Sabrina Jeffries

When Diego Montalvo, a dashing Spanish magician, moves next door to Charlotte Harris's School for Young Ladies, ostensibly to build a pleasure garden, the beautiful and determined Lucy Seton sets out to save the threatened school. But Diego finds heras interesting as his new project. Diego has really come to England to find the long-lost granddaughter of a Spanish Marques and return her to Spain, and he is convinced Lucy is the woman he's been looking for. Now, he just has to steal a look at her thigh to confirm a birthmark before whisking her away to Spain to collect his reward. But Diego never suspected he'd get caught by love. Will laying bare the secrets of her past help Diego untangle himself from the mess he's gotten himself, and his heart, into? Or will he lose her forever?