Heroine's Journey

At first, I was confused.  I wasn’t sure if it was the same girl (Guin and Gwen) or two girls in different universes, or two girls in different time periods.  Once I figured it out, I enjoyed the book a lot more.  I love the historical detail and how each girl became a strong individual.  Such an adventure (meeting someone in the past like that) would have been a dream come true for my younger self.