Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Amazing!

The Crystal Cave is about Merlin when he's young. It goes from the time he's around 8 up until he's in his twenties. Because of this, the whole book is lots of fun to read. Even if you don't like the Arthurian novels because they're all the same basic story you might like this. Arthur plays only a minor role at the end. I say minor role because he isn't born yet; the only influence he has is that Merlin begins to prepare for his arrival. So it's not like The Once And Future King, The Sword In The Stone, or any of the others. So, if you're bored with the usual Arthur stories, try this. You'll probably like it.