Welcome to the Kingdom of Hades, where even its prodigal princess sleeps lightly.
After fighting Soul Stealers in Detroit, Khara hoped to return home to find answers in her father's realm. But the land of the dead offers little information, and far too much tragedy. Now cut off from her brothers, and left only with her dark and unreliable companion Oz, Khara must navigate the centuries-old webs of deceit and betrayal, all while eluding the Underworld's most depraved inhabitant. But she soon finds an unexpected ally in her adopted sister Persephone. Together, they endeavor to right a terrible wrong. And as Khara soon discovers, there's more riding on her success than she ever thought possible.
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.