Faith of a Highlander by Katy Baker

Not even centuries can keep them apart.

When Sara Connelly is invited to Scotland to deal with her late uncle’s estate, she hopes it’s the chance she’s been waiting for. A chance to escape the wreckage of a disastrous relationship, a chance to get answers about a family she’s never known. A chance to start over.
But when she meets a strange old woman who warns that all is not as it seems, she’s attacked by a thief who seems to know more about her family than she does, and she’s saved by a gorgeous stranger who looks like he’s walked right out of a medieval movie, rather than answers Sara finds she only has more questions.
Thomas MacKenzie always knew his vow to the Order of the Osprey might take him far from home. He just never suspected how far. When he chases a deadly enemy through an arch, he never expected to be thrown into the future – or into the arms of a golden-haired beauty who might hold the key to unlocking his heart. Or the key to destroying all he loves.
As fate twines their lives ever tighter, Sara and Thomas find themselves embroiled in a deadly race to uncover a dark truth centuries in the making. But will they like the answers they find? Or will the truth tear their fledgling love apart?