The above taken from Wikipedia.
I've not read R.L. Stine's books but this movie is really exciting! It started off slow, like any other introductory but picked up slowly with the scary bits slowly popping up which were nail biting! This movie really kept me on my toes even though it's meant for kids ya! Well, the CGIs are realistic and Jack Black is really good here... worth to watch with the family. The ending suggests another continuation but I guessed it's just teasing us LOL!