This is how we put it together.
We wrote our stories in a Google Form linked from our blog
We each took screen grabs of fireworks that we had made with the iPad App Real Fireworks.
Then we copied those stories into Book Creator.
Then we recorded our narration of the text we had written and published it in iTunes for everyone to enjoy.
Here is the book made into a video.
Here is the embed code if you want to put it on your blog.
<iframe width="420" height="315" src="//www.youtube.com/embed/hnHlQZtbOV0?rel=0" frameborder="0" allowfullscreen></iframe>
And here is the link you can just download and view on your iPad.