On a birthday trip to Mexico, 12-year-old Ronnie Anne accidentally frees a demigod trapped in a mountain and needs her family's help to set things right.

Fourteen-year-old Frankie Ripp had a perfect life — a great family, an annoying little brother, a popular boyfriend and a BFF she could always count on. However, her life took a surprising turn after an unfortunate incident. After some heated debate in the Underworld with the Grim Reaper herself, Frankie is forced to navigate life with her new Underworld guardians, Pretty and Scary, in the most challenging setting of all … middle school. Pretty freekin scary, huh?

The Casagrandes tells the story of Ronnie Anne, an independent, adventurous, 11-year-old who explores city life with her big, loving, multi-generational Mexican-American family.

A pair of middle-school siblings make nearly all of their decisions by crowdsourcing the opinions of their millions of online followers.