Invisible by Dawn Metcalf

This is the second book in the Twixt series and this series should be read in order. I think it is important here not just for character development but for world building as well.
I enjoyed most of the book and liked that Joy grows and finds her own inner strength and saves herself rather than relying on others constantly. Her behavior before that frustrated me but at the same time I also can see that it was purposeful to highlight her growth. Still, some of the things she did left me shaking my head in wonder.
I liked the addition of Stef, her bother, who was more involved this time. I would like to see more of that as well as more involvement with her father. I liked the growth of Ink even as small as it was. It was interesting seeing him become more of a human. I was more convinced here of the romance than I was in the previous book. There is still more to be done to really see them as a couple, but I do like the advancement toward the relationship.
I give this book 3 stars. I recommend it to those that enjoy YA and a strange and different world.