Medical student Marcos D'Lassio and his Argentinian journalist friend, Rubén Colbert, are shopping together on Christmas Eve when their paths unexpectedly intertwine with two women. Like Rubén, Maxine Letalier has also left Argentina behind to pursue education in America, specifically a PhD in Anthropology. Brazilian-born Megan Arza is a secretary at the Los Angeles Times, the same newspaper where Rubén has just secured his first job.

After the four young people form an inseparable bond, they decide to set forth on a voyage to solve the ancient mystery of the petrified heart. As their journey leads them from Paris to the beaches of California and the city of Buenos Aires, and finally to the alluring Andes of South Argentina and the jungles of Brazil, the mystery of the petrified heart comes full circle as the impossible suddenly become possible.

The Mystery of the Petrified Heart shares an intriguing, coming-of-age tale that captures the sweet moments of passion, seduction, and friendship as four curious young adults venture into an unknown world to prove a romantic theory.