Some promises are hard to keep...
Phillip promised he'd let her go home. He promised, after she completed her task, she'd be free. He didn't promise her that he wouldn't capture her heart before he released her.
For Sarah, captive of the Highland laird, that these promises are kept is paramount.
Phillip never expected to fall in love with the woman who was supposed to save his brother's life. He also never expected to break a promise. But some promises are hard to keep, especially when he finds out the secrets she's keeping.