Franka Stein hoped she would have usual holidays. Her mother took her to Tangryin Castle instead. Franka, disappointed at first, step by step discovers the mysteries lurking around. Together with Ty, who lives in the castle, she makes an unbeliavable discovery that from the very moment changes their lives completely.

How are they going to find themselves as Passers? Why passing through portals is a taboo in Wastylia? And how is this all connected to Tangryin?

And why the heck they're being called Timeriders???