Master of the Highlands — Veronica Wolff

SHE'S BACK IN TIME...
Lily Hamlin has finally realized that her life isn't as perfect as she once thought. Lily hopes that making a pilgrimage to Scotland, a land she's only heard about in lullabies, will help her to find her place again. But while exploring the Highlands, she discovers an overgrown maze and a strange stone map--and lands in the Lochaber of 1654...

...JUST IN TIME FOR HIM.
Ewen, Chief of the Clan Cameron, is a busy man who must figure out how to save his people from the brutal redcoats and has time for little else. Having sired an heir, the widowed Ewen has no need--or room--for another romance. Then into his life drops a saucy lass with a peculiar accent, no regard for his title--and an arousing body. Drawn to each other despite their differences, they both realize that they don't want Lily to go back to her own time. But with battles brewing between the Camerons, the redcoats, and a rival clan, staying is a gamble.