In the fall of 1939, Grace Baker’s three brothers board Canadian ships headed for war. Grace stays behind, tending to the homefront and the general store that helps keep her small Nova Scotian community running. Three years later, the fighting rages on, and rumors swirl about “wolf packs” of German U-Boats lurking in the waters along the shores of East Jeddore. One day, a handsome stranger ventures into the store, claiming to be a trapper, and Grace becomes enamored. But after several weeks, she discovers that her mysterious visitor is not the lonely outsider he appears to be.

Twin sisters Dot and Dash Wilson share many things: a birthday, a best friend named Gus, and a secret shorthand based on Morse code, a language their father, a WWI veteran, taught them as children. But that’s where their similarities end. While Dot’s nose is always in a book, preferably the latest by Agatha Christie, Dash is a social butterfly and spends her evenings out dancing. Despite their differences, the sisters have a close bond—until one develops romantic feelings for Gus.

Dublin, 1952. When Mary Kate Ryan receives a surprise inheritance from the woman who abandoned her as a tiny baby, she’s stunned. All her life, she has longed to know why her mother disappeared, and now she’s devastated to realize that every lonely night she spent without a home or family of her own, her mother knew exactly where she was.

Anne Gallagher grew up enchanted by her grandfather’s stories of Ireland. Heartbroken at his death, she travels to his childhood home to spread his ashes. There, overcome with memories of the man she adored and consumed by a history she never knew, she is pulled into another time. The Ireland of 1921, teetering on the edge of war, is a dangerous place in which to awaken. But there Anne finds herself, hurt, disoriented, and under the care of Dr. Thomas Smith, guardian to a young boy who is oddly familiar. 

Montana 1925: Three brave kids from New York board the orphan train headed west. An Irish boy who lost his whole family to Spanish flu, a tiny girl who won’t talk, and a volatile young man who desperately needs to escape Hell’s Kitchen. They are paraded on platforms across the Midwest to work-worn folks and journey countless miles, racing the sun westward. Before they reach the last rejection and stop, the kids come up with a daring plan, and they set off toward the Yellowstone River and grassy mountains where the wild horses roam.