Does anyone know where I can find the coloring books that come with the magic pen--the page is black and white but when you use the special pen that comes with it the page gets colored in. I am trying to find these since we are driving to Florida and I had found one for my daughter last trip and it kept her occupied for a while. But now I can't find them anywhere! Any help is appreciated. I am not even sure if this is what you call them, I asked one of the workers in the bookstore near me and she looked at me alittle strangely!