Adam by Sydney Jane Baily

The heir to an earldom needs a suitable wife, but he falls arse-over-elbows for a governess with a shadowy past.
Dark-haired and wickedly handsome . . .
Lord Diamond leads a charmed life. The only brother amongst four sisters, he is touted as the best thing since frothy syllabub. Every young lady in London wants his leg shackled to hers. Summering in Bath brings freedom from the marriage-minded Mayfair mothers and reaps a new crop of single females to enjoy. Problem solved!

She’s living a terrible lie!
Mrs. Alice Malcolm has an ideal situation, tutoring two young ladies in an upper-class home. A clean room, a roof over her head, and best of all, as long as she keeps her former identity hidden, she is safe from the demands and threats of the past.

While Adam pursues Alice to be his mistress — and duty battles with desire — only two options remain for her . . . ignore his impossibly tempting, amorous advances or flee for her life! Will pride, prejudice, and secrets keep these two from their happy ending?