Mercedes Cruz is a Bruja - or Witch, in Spanish. Just like many first generation sons and daughters of immigrant parents, Mercy has embraced America, its culture, and its customs in their entirety. But Brujeria or Mexican Witchcraft is deeply tied with Mercy's heritage and her family's past, and because she's neglected such a large chunk of her identity, Mercy now stands a stunted witch in her 30's.

Mercy, also a single mother of five-year-old Terra, who may also share her attributes, has decided to start her own private investigation firm in the heart of Orange County, California. She's decided to use her budding talents to recruit business, solve challenging cases, and help those in the community who lack a voice and who may be too afraid to report crimes due to their legal status - leaving criminals to freely exploit those who choose to live in the shadows.

In this introduction to the Mercedes Cruz series, Mercy's Magic, our budding detective and witch takes on a case near and dear to her heart. A family friend and her ex-husband's best and most trusted employee has gone missing. While investigating his disappearance, Mercy soon finds out the consequences of neglecting the tutelage of her Aunt Itzel throughout the years, a great and powerful Bruja in her own right. Mercy learns a life-changing lesson when she encounters a mysterious and foreboding being, whose dark and brooding powers dwarf her unrealized potential.