Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

This one doesn't really fall into the Western category, but it's full of hammering action, informative local California history, and mystic goings-on. Seacoast adventures, early Califronia ranching, great good-guys and really bad bad-guys, and mysterious appearances by silent, unknown characters fill this one to the brim! Best of all, L'Amour introduces in this story, for what I believe was the first time in his writings, the famous "portal to the other side," which really sets this story apart from almost all of his other works. Excellent yarn through and through. You won't forget it for a long time after you first read it!
Positive

not nearly as good as her usual work if your hoping to hear her forget it it is a pale comparison with authors who don't have her style
Negative

I have seen four 3D movies on my new 3D TV and this one has been the least exciting as far as its 3D effects. I was disappointed. I am amending this review after watching the movie again. While I did enjoy the 3D version, I felt the 3D effects were subpar. It is still enjoyable to watch and still has the 3D perspective. They don't send things protruding out at you like other 3D movies do. It doesn't have the WOW-factor that other 3D movies have had.

Negative