Pick any book from your readathon pile and write a fake synopsis based solely on the cover. The synopsis does not have to be related to the actual book at all, just the pretty, pretty cover.
Working with automatons, Dina as often been fascinated by making things "alive", but she finds her father's experiments on the mechanical men troubling when she realizes he's trying to make a fully functional replacement for her dead brother. What is created is something that is her brother but isn't. A machine that has his eyes and mannerisms and memories, but is somehow wrong. Horrified, yet still drawn to the image of her beloved brother, Dina must decide what is human, what is not, and whether playing God should ever be tampered with.