Playing with reality. "Time"

Description of book "Playing with reality. "Time""

And what will you feel when you wake up in the morning and realize that you are not in your cozy bedroom, but in a completely unfamiliar place? Shock? Fear? Despair?
It was these emotions that overwhelmed Helen when she realized in the morning that she was nowhere to be seen. An unfamiliar apartment, a strange city outside the window… Helen did not remember how and why she was here. And, as it turned out, not alone, but with her best friend Yves.
The girls are trying to find answers to questions and understand the circumstances under which this strange journey took place. The most interesting thing awaited them ahead. The journey turned out to be not simple, but temporary… And the reason for this time travel was Helen herself…