This one is so different than book one. The first book focused on romance, purposes and the discovery of angel mythology. Its fun, about falling in love and free will. Book two is far more series, will a sallow, downer mood. Its about death, dying and uncertain futures. Clara is faced once again with rethinking her decision to be with Tucker. With so many questions left unanswered after book one, I can say for sure, some of them are answered, but many still are not. The side characters: Angela, Tucker's sister and Jeffry are not explored to greater depths or even present in as much of the story as I would have liked them to be. The majority of the story is about Clara and her battle to uncover her true purpose. She is now having new visions. Jeffry in this novel, is brooding, stand-offish and mostly absent. Some of what's he's been up to is revealed at the end of the book, but there is still plenty of story left to tell. 
 I almost think I may have enjoyed reading Unearthly better because its a happier, lighter story. Hallowed is full of frustration, sadness and grief. It also keeps revisiting the love triangle between Christian, Clara and Tucker. Its a good story, certainly not fluff or filler, its moving the plot forward. I'm getting tidbits of my questions answered, just not all of them. Its main focus is on Clara, though. I wish it had also brought more depth and insight into some of the other side characters.