When magical relics are discovered in the stony canyons of Mercury Past, the village finds itself swarmed by the surrounding lands that seek the power of the lighted oracles.
A special Baltic Sea voyage intended to honor Cold War veterans and diplomats quickly spirals into danger when a former intelligence officer is found murdered.
Fifteen-year-old Tracey wishes to be set free from the strict rules of her parents, and with the help of her older sister, Liz, and her cousin, Veronica, she may get more than she bargained for.