Ahh, R.L. Stine.

The book does what it says on the cover. A couple of brothers go to a Ghost Camp. Of course, they didn't know in the beginning, but very quickly they figure it out. And there's protoplasm! And, in typical Stine, fashion, there's a little twist ending. One of the brothers gets possessed by a ghost. This is all meant to be very ominous, but a few pages earlier it was explained that it would only be temporary. So it's not that scary. Though given the ghosts apparently disintegrate if they leave the camp, I'm not too sure how long the ghost will survive. Bad form, Stine. Bad form.