Highland Captive (The Sons of Gregor MacLeod, #4)

She wasn't just his son's savior.
She may be his as well...

Laird Gavin MacKinnon is a changed man―and not for the better. Ever since his young son, Ewan, disappeared two years ago, Gavin has grown callous and bitter. Scouring the countryside, his search leads him to a mysterious woman who maintains the boy is hers. He decides to take them both and ask questions later.

Deidre MacIntyre will go with the brooding laird if it will keep her son safe. Gavin has to admit that the beautiful lass has a bond with Ewan, and things aren't adding up. When Deidre's clan comes to claim her under threat of war, Gavin has a choice to make: fight for her or let her go.