Instruct: Classify Amazon reviews into positive or negative sentiment
Query: One of his weaker efforts

I've read three of his books, and this is easily the worst. Storylines are never a strength in his works, and that is most obvious here, where the ending looks like something he just pulled out of his rear end when he couldn't come up with anything better.The strength of his books for me has always been Gregory, his relationships, and his practise. Those elements take a backseat in this book to featuring some other characters who, I hope, we won't see again in other novels.You won't miss anything if you give this one a pass.