Moonwise — Greer Ilene Gilman

FOREVER LOST IN THE SEDUCTIVE MADNESS OF A WORLD OUT OF TIME.

Ariane and Sylvie had spent endless hours spinning fantastical worlds out of the depths of their shared imagination. But when Ariane returned for a long overdue visit, she found herself swept up by old Sylvie-sung spells, caught by the same madness-- or was it magic--that still possessed her friend. And even as Ariane sought to recapture the dreams of their youth, Sylvie vanished, lost in some real or otherworldly woods. For Ariane, the search for her missing friend would send her on a quest no mortal could hope to complete, as she journeyed into a darkness far deeper than night to challenge an enemy who had stopped Time itself....