Kallista Babbage is a repair technician and daughter of the notorious Leo Babbage, who died in an explosion--an event the leaders of Cove point to as an example of the danger of creativity.

Working together, Trenton and Kallista learn that Leo Babbage was developing a secret project before he perished. Following clues he left behind, they begin to assemble a strange machine that is unlike anything they've ever seen before. They soon discover that what they are building may threaten every truth their city is founded on--and quite possibly their very lives.