Seventeen-year-old Ryn Whittaker is a Citadel: an elite, enhanced soldier specially chosen to guard a Rift, a mysterious and dangerous portal to alternate Earths scientists cannot control or close. Trained from the age of fourteen, Ryn can run faster, jump farther, and fight better than a Navy SEAL—which is good when you’re not sure if a laser-wielding Neanderthal or an axe-wielding Viking is trying to make it through the Rift and into her world... moreSeventeen-year-old Ryn Whittaker is a Citadel: an elite, enhanced soldier specially chosen to guard a Rift, a mysterious and dangerous portal to alternate Earths scientists cannot control or close. Trained from the age of fourteen, Ryn can run faster, jump farther, and fight better than a Navy SEAL—which is good when you’re not sure if a laser-wielding Neanderthal or an axe-wielding Viking is trying to make it through the Rift and into her world.But the teenager’s military conditioning and education have not prepared her for the boy who crosses through—a confused young man, seemingly lost and alone. Because while there’s an immediate physical attraction, it’s his intelligence and curiosity that throws Ryn off balance. The stranger asks disturbing questions about the Rift that Ryn herself has never considered—questions that lead her to wonder if everything about her life and what she’s been told these past six years has been a lie. Are the Rifts as dangerous as her leaders say? Should her people really try to close them . . . or learn how to travel through them? less
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