When eleven-year-old Jenny Liddy, in turmoil over learning that she is a changeling, makes a deal with a devil creature, she endangers the human race but her own cleverness, her human and fairy fathers, and the last of Ireland's high kings help to make things right.

Months after confronting the legendary La Llorona, Paola starts dreaming again, this time about fantasmas that are stalking her and someone who might be even more dangerous--her estranged father.