The Thirteen Origins is a series of one-shot origin stories for the members of The Thirteen, a group of Mexicans and Mexican Americans who discover they are chispas, able to wield impossible powers. María Guadalupe "Lupe" Miramontes is stuck in a precarious position as a student-she's from Mexico, but studying in the U.S., dreaming of giving her parents a better life than they have. Shortly after her eighteenth birthday celebration, she is stopped from returning to her studies for misplacing one of her many documents. In a moment of personal weakness, she finds strength in an ancient legend come to life. As the new thrall of a fire wyrm, Lupe needs to decide exactly what kind of spark she should be.