This isn't a typical King horror story, no supernatural elements to it. However, it's typical King in terms of the strong characters, tight plotting and emotional punch. It reminds me most of Stand by me and therefore is a book I'd heartily recommend.
I bought this for my 2 year old son for Christmas last year. Sadly the ladder broke off when picked up one day, not that long after purchase. It was only glued and held in place with a small screw, the wood was also quite cheap and therefore it broke. Very disappointing all in all and wouldn't recommend this toy for that reason.