The Hollow Places is a horrific, creepy, unique alternate realm story including nature (willows) to terrify.  There were lots of references to Narnia.  I have never seen or read so I didn't get them, but story was enjoyable nonetheless.  I enjoyed the side kick Simon and would not have minded seeing more of him.  Uncle Earl too.   I thought Kara was brave and scared at the same time; I would have moved immediately.   I enjoyed the concept of the story, but I found myself bored at times with the details and waiting for the ultimate payoff.  Can't say I was wowed.  I enjoyed the humor.  I like when Kara was startled that she said "once I snatched my soul back...".