A brilliant mind needs a strong heart. Mathematical genius Dr. Meg Brightwood has just completed her life’s work—a proof of a problem so impenetrable it’s nicknamed the Impossible Theorem.   Reclusive and burdened by anxiety, no one took Meg seriously before. Now everyone wants to get their hands on what she alone possesses—especially her own mathematician father. Having grown up a prodigy in a field plagued by sexism and plagiarism, Meg opts for a public presentation so there is no doubt of her authorship. But a panic attack derails her plans. Defeated, Meg returns to the decaying house where she lives alone and locks away the one and only manuscript of her proof.   Then chance sends her the unlikeliest of allies. Isaac Wells—carpenter, high-school dropout, in trouble with the law. And the one love of Meg’s life. Fifteen years ago, they never did more than hold hands. Now adults, they reach toward each other