A cute and quick little novella, included in KU, read and listen. The audio was fun with the accents. I'm NOT a big Brigadoon gal, just familiar enough to recognize the similarities here. 

The original setting is contemporary, (first person/past tense) with our MC making a trip to Scotland ... dying mother's wish, her brother had disappeared years before. Even the MC says "I seriously doubted I'd be able to find any clues ..." ya think? A 20 year cold case that the police couldn't solve? This memory/conversation with mom also sets up the insta-love, because the MC's mom&dad had insta "You fell into a pool at a party and he rescued you and it was love at first sight." "Even though we'd never met, it was if I'd always known him. Like we'd been in love in some other life ..." 

So - in Scotland, lost in a snowstorm, MC is saved by a guy, the most incredible-looking man, something familiar, as if she'd always known him ... he happens to be a Scottish lord, in a mysterious/magic time-slowed town in 1647.  Like the town in Brigadoon, the town only appears to the "real/contemporary" world occasionally. The town is very aware the world goes on without them, they even "trade" (silver coins for modern conveniences with descendants in the outside world). Life goes on for them between appearances, just a lot slower.

SPOILERS now ...

So low and behold, our MC does find out what happened to her uncle who disappeared! He's at the castle! He's still just in his 20s as it's only been a couple years for him. He's happy and getting married. Of course, the MC and Duncan (her rescuer, the Lord) are in insta-love, but she can't stay, as she can't disappear on her mom, and Duncan can't leave, as the place depends on him. So how can this be a HAE? It is solved a little too easily. Maren goes back, tells her mom about her brother. Mom dies. Maren decides she'll try to go back and hope the castle appears ... and it does (even though it's just been a year for her, and often the castle would go hundreds of years between appearances. It's only been five days for Duncan.)  In the epilogue, we get a peek at the future. Maren and Duncan are married with a little boy and another about to pop, when a new visitor arrives. It's Maren's best friend's son, now grown up (so 20+ years have passed on the outside), so some fun closure for both those characters.

I don't know that I'd heard that Christmas had been outlawed in Scotland in 1640 and that ban lasted until 1958. It's the reason behind the "magic" castle disappearing, to protect them and their Christmas celebrations.  Ironically, turned on a random Hallmark-Christmas movie "A Merry Scottish Christmas" and ... there this "law" was pointed out. I enjoy serendipitous connections like that ...

Our MC is also in veterinary school, so had a couple "All Creatures Great and Small" moments.   I had JUST read a sci-fi, not time travel, but again, someone with contemporary knowledge in a "past" time, introducing that knowledge (a little "Outlander" ... also had that feeling here, and "someone did call me sassenach" ...)

Dais -- pronounced with the I long (98% of the time, "correct" is with long A). 

Cute and clean.  Really appreciate the cover ... the snowglobe is a perfect representation of the castle caught in its own little space in place and tim