Five years ago the lights went out, cars stopped in the streets, and magical creatures began roaming the towns and countryside of Earth. Pete Garey, a young loner who survived the Change and the madness that followed, spent two years wandering and scavenging the near-deserted cities and towns alone -- until the day he encountered an injured unicorn. He nursed her back to health and named her Ariel, and an unlikely friendship was formed. But unicorns are rare even in a Changed world -- and the power of their magic is highly prized. A necromancer in New York City covets that power and will stop at nothing to possess Ariel, dead or alive.