Six months have passed since Undine discovered the powerful magic within her and very nearly threw the entire world into chaos. Life has gone back to normal—almost. The magic still swirls relentlessly below her surface, demanding that she break her promise not to use it.

And then there's Trout. Trout, with his messy, unrequited love for Undine. Trout, who can't sleep and who roams the streets at night instead. Trout, so desperate to learn about Undine's magic that he's willing to trust a mysterious young woman who knows an awful lot about him, about Undine, and about chaos theory.

As their lives continue to both unravel and coalesce, Undine and Trout feel drawn back to the Bay, where it all began.

Is Undine stronger than the magic she contains? Is she more girl than magic, or more magic than girl?