Carol and Johnny Garza are 12-year-old twins whose lives in a small
Texas town are forever changed by their mother's unexplained
disappearance. Shipped off to relatives in Mexico by their grieving
father, the twins soon learn that their mother is a nagual, a
shapeshifter, and that they have inherited her powers. In order to
rescue her, they will have to descend into the Aztec underworld and face
the dangers that await them. American Library Association, 2016 Pura
Belpre Author Honor winning novel.