Unseen begins not long after the first book ends. Khara is going back to the underworld to figure out what's going on. But, while doing this unleashes a chain of events that could leave to the world as she knew in total danger of a lot of things. Now, not only are people she thought as allies aren't some of her enemies seem to be closer to her now than ever before.
This one sadly wasn't as good as the first book, but it was still very interesting. I liked how Khara changed a lot in this one, and I really enjoyed the brothers as well.
There were a few things that bugged me this one, like how Khara seemed fooled by so many, yet at the same time she isn't. It's very strange, but that's the way it kind of was. I do look forward to reading more because this one left things way up in the air as to which direction the book is going to go next.