Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Childhood's End: What a weird book...

The novel "Childhood's End" has been a disappointment to read. I say this because the novel starts off strong and exciting and finishes off weak and boring. In the beginning of the novel, the author kept me wondering what would happen next. Towards the end of the middle section of the book, I perhaps became tired, which explains why it seemed to me, the story began to lose its mood and started to make me not want to read anymore. This only got worse as the book came to an end. The story started to drift away from the human race and more into the Overlords, and eventually into a whole new character called the Overmind. In my opinion the adding of a new character, a couple of pages before the end of the book was not a very good idea. I don't recommend this book to a reader who has not read many science fiction books, because the book is a bit difficult to engage in, while it is very easy to disengage and stop reading the book.