Will the mysterious Book of Love lead Penelope to her true love?

Lady Penelope Sherbourne is not - absolutely not - going to fall in love with Thaddius MacLauren, Laird of Caithness, even if he is a big, handsome Scottish brute and ridiculously protective of her. But now that the Book of Love has fallen into her hands, Thad is the only one she trusts to test out the sensations she must explore in order to find the perfect husband. She wants a mild-mannered English earl, one who lives near her family, and who will not make her heart leap or her bones melt as Thad does every time he looks at her.

Thaddius MacLauren intends to claim a kiss from Lady Penelope Sherbourne and nothing more. No, not a thing more, even though he's loved the sharp-tongued, vexing lass forever. She's also been kinder to him than anyone else alive, and for a boy who never felt loved by his family, Penelope's kindness has come to mean everything to him. How can he ever tell her how he feels? She's the daughter of a powerful earl and all he can offer her is a tumble-down holding at the northern tip of Scotland. It will take a miracle to win her heart.

Is it possible the Book of Love holds the magic to bring it about?