Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very imaginative.

I really enjoyed this book the first time I read it in middle school. I was a very big christopher pike fan back then. i liked the way the plot progressed and became so complex and intricate. and the way it works itself out it reminds me of the terminator movies in a way. one action changes the course of history kind of thing. it just shows the imagination this author has. although I think he may have run out of ideas for "the hollow skull". I think "the starlight crystal" was one of his best works. If you liked this novel, try some of his other books like "The Last Vampire" series. That was good too. If you didn't like "the starlight crystal" chances are that either 1) you're not a fan of sci-fi or 2) you have no imagination. That's just my opinion.