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Timeless. Book 1: The Ruby Book

If our reader believes that time travel requires some kind of machine, then he is a bit behind the times. German writer Kerstin Gier solves this problem in an ultra-modern way. Her heroine, Gwen Schaeffer, gets by with a time traveller's genome. However, it's a very strange one: Sometimes it will take a girl and throw her into the past, where she feels out of place... But Gwen manages to find out that behind this lies the secret society of the Circle of Twelve, and each chosen one has a name in honour of a gem, and everything turns into a game of intrigue with a bunch of riddles and the search for answers to them.

Timeless. Book 2. The Sapphire Book

Gwendolyn is preparing for a party in the past. She has a lot of questions, but the main one is: does she or does she not love? And then comes the moment when the girl finds herself in a world of intrigue and mystery, where her grandfather is almost her age, armed men in black lurk around the corner, and the mysterious Count Saint-Germain tells bizarre stories. And in this whirlwind of secrets, the world suddenly turns upside down...

Timeless. Book 3. The Emerald Book

In this book, the main character Gwendolyn is facing incredible trials: her heart is broken, her feelings are completely trampled, and there are only secrets around her that hide the terrible truth. In this frantic whirlwind of events, Gwen repeatedly faces a difficult choice: how to forgive her own parents? Can she trust her lover? How can she avoid falling victim to Count Saint-Germain and the Guardians? How to finish the game with dignity, from which there is no way out? It seems like there is pitch black everywhere and no way out, but fate suddenly sends those into Gwen's life who will take her side and show her the way out.