ooooooh i love Goosebumps. I remember as a kid, I had a l;ot of their books (and still have a lot of their books) and I used to borrow heaps of them from the library. I love the ones where you have to go down the page and follow something like:
if you picked Jeff's way go to page 154
if you picked Lisa's way go to page 10
and basically, you would follow the story in your own way and there would be a possibility of 20 endings or something...loved those