Years ago while vacationing in Scotland, Katherine St. Claire believed she'd found the love of her life. She shared a night of passion with a stranger, in a hotel castle called Duncreag. But come morning, her lover had disappeared. And she has spent the last eight years trying to convince herself it was all a dream... Living in the 15th century, Iain Mackintosh remains haunted by the memory of his greatest love. Eight years ago, she disappeared, leaving behind a cairngorm earring as the only evidence of her existence.

It’s Mallory Atkinson’s first Christmas in Scotland. Victorian Scotland, that is. Also, as the twenty-first-century detective learns, Christmas really isn’t a thing in Victorian Scotland. It’s all about Hogmanay. But her boss, Dr. Duncan Gray, treats her to an early gift of tickets to the event of the season: a Charles Dickens reading. There, they bump into Lady Inglis—the lovely widow who has sent Gray sexy letters trying to entice him back to her bed.

May 20, 2019: Homicide detective Mallory is in Edinburgh to be with her dying grandmother. While out on a jog one evening, Mallory hears a woman in distress. She’s drawn to an alley, where she is attacked and loses consciousness. May 20, 1869: Housemaid Catriona Thomson had been enjoying a half-day off, only to be discovered that night in a lane, where she’d been strangled and left for dead. When Mallory wakes up in Catriona's body in 1869, she must put aside her shock and adjust quickly to the reality.

Thorne Manor has always been haunted...and it has always haunted Bronwyn Dale. As a young girl, Bronwyn could pass through a time slip in her great-aunt's house, where she visited William Thorne, a boy her own age, born two centuries earlier. After a family tragedy, the house was shuttered and Bronwyn was convinced that William existed only in her imagination. Now, 20 years later Bronwyn inherits Thorne Manor. And when she returns, William is waiting.

Darcy Greenway has no time for love. As a dedicated veterinarian her career and her patients come first. But since the death of her parents she's been running, searching. She just doesn't know what for. On a much-needed vacation to Scotland, she walks under a natural archway on the shore of a loch and finds herself catapulted into the 16th century...and right into the middle of a clan war. Stranded in a world of danger and passion, Darcy finds herself drawn to Quinn MacFarlane, the brave Scottish warrior who swears to protect her. But Quinn has secrets of his own.