Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Lacking

I was expecting an exciting book, something riveting and well thought out. Rasputin was by all accounts an exciting character, shady, mystical, sexual, aggressively climbing the social ladder. Why then was this book such a disappointment? The time line was hard to follow, the character development was lacking and the sentences poorly structured -- was it botched in translation into English? At any rate, it's going to a garage sale, I can't finish it and I'm not interested to force myself to continue reading.