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.

December 1899. After the death of her beloved grandmother, Cleopatra Fox moves into the luxury hotel owned by her estranged uncle in the hopes of putting hardship and loneliness behind her. But the poisoning of a guest on Christmas eve throws her new life, and the hotel, into chaos. Cleo quickly realizes no one can be trusted, not Scotland Yard and especially not the hotel’s charming assistant manager.

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.

Librarian Sylvia Ashe knows nothing about her past, having grown up without a father and a mother who refused to discuss him. When she stumbles upon a diary that suggests she's descended from magicians, she's skeptical. After all, magicians are special, and she's just an ordinary woman who loves books. She seeks answers from a member of the most prominent family of magicians, but she quickly learns that finding the truth won't be easy, especially when he turns out to be as artless as her, and more compelling and dangerous than books.

Will is my fiance. The shy man I met years ago in college. The person I'm supposed to spend the rest of my life with. This is the life I've always wanted until finding a picture of four men changes everything.... Étienne says he's my husband and the year is 1912. He can't stand the sight of me, but I don't know why. Oh, and he's one of the men from the picture. I've done the impossible and have become trapped in time and I know Étienne is my key to going home.