Shadow Over Avalon by C. N. Lesley
Shadow Over Avalon had everything that I look for when I read a fantasy novel. There were so many layers to this story that I had a hard time pulling myself away from it. Without giving too much away, the story of Arthur and Shadow really drove this book. Watching how the timelines of these two unraveled is really what captivated me. Not to mention the world of Avalon itself was marvelous.
This book builds a world without being too into the world itself. You can see yourself in Avalon with its people, as well as with the Terrans on the surface. Shadow Over Avalon is incredibly detailed without there being too much fluff. I would say this is one of the best fantasy novels I have read in a long time. The ever-looming presence of The Archive gives you the feeling that there is much more to the story than is written. I highly recommend this book and honestly cannot wait to read the rest of the series.