Highlander Wanted by Rebecca Preston

When Lissa is thrust back in time to ancient Scotland near the MacClaren Keep, she must take on a new role while watching the man she’s destined for risk his life and their potential future…
Child welfare worker Lissa’s trip to Scotland was supposed to help her decompress after handling a traumatic case. Instead, she finds herself tumbling back in time to ancient Scotland where she’s confronted with the strange reality of the time-lost women in MacClaren Keep.
Warrior Cameron MacClaren has his hands full as a widower single father to four-year-old twin girls. He doesn’t have time to assist his clan with their bandit problem. But when he finally reluctantly returns home, he finds an even bigger complication—Lissa, the reincarnation of his beloved wife and the woman his children believe is their mother come back to them.