About this book

On the school station Tantulus, students are trained to master the living technologies bonded to their bodies—but Kaelen Mirev has never stood out, until his symbiote begins reacting to an impossible signal rising from the frozen moon below. As Europa yields patterns no one can explain, drills turn into lockdowns, teachers close ranks, and Kaelen and his friends find themselves at the center of a discovery the adults may not be able to control. To uncover what is calling to him, Kaelen must decide whom to trust and what he is willing to become, before fear, secrecy, and the station itself turn a year of study into a fight for survival.