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Kerstin Gier
The Ruby Red Trilogy
Gwen discovers she can travel through time, a family secret that pulls her into a hidden society. She navigates historical eras, secret societies, and first love while trying to understand her destiny and the mysteries of the past.
The Ruby Red Trilogy is designed to be read in the published order, as the story of Gwendolyn Shepherd's time-traveling adventures unfolds chronologically across the three main books.
The Ruby Red Trilogy has been adapted into a series of German films, with each book corresponding to one movie: Ruby Red, Sapphire Blue, and Emerald Green.
While Kerstin Gier has written other popular series, The Ruby Red Trilogy is a standalone story and does not share characters or a universe with her other works.