Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Mystery is too easy to solve...

Frankly I couldn't believe my eyes when I read this. There, plainly, in print, the murderer was given away in the first 50 pages of the book! Maybe I wasn't supposed to figure it out, but the murderer's actions were described quite plainly. I was disappointed. But then I thought: Maybe it had to be this way because it was a novel adapted from a play. In the play, obviously, the murderer's actions would be described so the actors could act - it was up to the audience to pick up on it. And I was the audience, and I DID pick up on it. But honestly, a die-hard Christie fan like myself HAS to read this book because so many beloved characters are there: Poirot, Hastings, Inspector Japp, etc. So reading the book is like going back to old friends that you thought you bid adieu. The 3 books Osborne adapted as novels are like the "lost Agatha Christie novels".