** THERE ARE NO COOKIES IN THE HOUSE **
Horror of all horrors! I don't have any either.
As far as I know, the $12 just holds the domain name for a year. It also enables you to forward stuff that goes to it to another domain name. I didn't look into website hosting through Google because I have already paid for a year of business web hosting at WordPress.
I was rather annoyed by the pricing structure for that, too! To use the kinds of plugins I wanted to use, perhaps to use plugins at all, I had to have a business account. I know that before I went with WordPress, I read a lot of reviews of various hosting outfits and their pricing structures.
I have yet to implement what I wanted a plugin for.
I have a long list of books that I have edited since 1984 (I think that was the year). Each book (well, maybe there are two exceptions) mentions me in some way in the Acknowledgements. I wanted to display the book covers and the acknowledgements together. The idea is that someone would click the book cover and it would flip open to reveal the blurb about me in a readable format.
Gotcha. It sounds like your using WordPress.com. Right?
It sounds like, maybe, what you want is a mouseover kind of deal. I've not tried any plugins (though they have them) for that. It can be hand coded, but I don't know if you can do that on WordPress.com.