In My Wildest Dreams — Christina Dodd

Since she was a little girl, Celeste has had one burning desire: to marry Ellery Throckmorton. But what chance does a gardener's daughter have of capturing the heart of one of England's wealthiest gentlemen? However, the education she receives at the Distinguished Academy of Governesses enables Celeste to return to Blythe Hall with a refinement that complements her ravishing beauty -- and makes her bold romantic dream more attainable. But alas, temptation gets in the way...

For wherever Celeste turns, it is not Ellery she encounters, but his serious, yet undeniably intriguing, older brother Garrick. The elder Throckmorton will have no one interfere with the younger's impending nuptials, and his meddling infuriates Celeste to no end. Still, she cannot disregard the fluttering of her heart whenever Garrick deigns to smile at her. And the passion she senses smoldering beneath his formidable control is tempting her in a manner a lady must never allow...