The last book of The Witcher saga! I loved the first half of the book with its parallel universes and the fact that the story of The Witcher is viewed as a type of distant land fairy tale. One thing that this author can do is create complex characters, meaning, no one is ever lawful good, everybody is chaotic (neutral, good or evil). Themes like misogyny, slavery and racial discrimination are all present in the story.

We discover that there are elves and humans living in different dimensions but everybody is trapped in their own worlds, except for some with unique powers who can travel between timelines.
Everybody is looking for Ciri because of her extraordinary powers. Elves can be as evil as humans and sorceresses. And Ciri is on her own quest to escape what everybody think is her destiny.

I took a few days to grasp the ending, which can be interpreted in different ways.  <spoiler> Both The Witcher and Yennefer die and after their deaths Ciri leaves everything behind and go to a parallel universe where Galahad from the Arthurian legends lives. The book begins with Ciri talking to Galahad and so the whole book is the retelling of her story to him. </spoiler> 
I think the story is brilliantly written, with varying points of view, snippets of Dandelion's memoir "Half a Century of Poetry", a huge battle being described through its actual combatants suffering and the healers in a war field hospital.

But people die. Lots of characters die. And that's what makes this series "dark fantasy" in my opinion. It has the feel of a fairy tale without the happy ending. Or maybe the ending is happy depending on how you interpret the ending. I had mixed feelings in the end, but in my head the ending had this dramatic sad tone.

Excellent series overall with rich world building and interesting characters. It was a nice ride!