I will have to start this review by mentioning Goosebumps. This is very much like that series and fans of that series will enjoy this. This just feels less polished than Goosebumps.
It is quite tense and mildly perilous. It has some graphic detail of horror which means I would recommend it to slightly older children than could read this book alone. It also has more than one typing error that made it to publication.
I got this book as a stand alone but the ISBN indicates it is part of a box set.