The Hidden Halls of Hallowmoon

Hallowmoon Academy has survived a broken Veil, a corrupted Archchancellor, and a Nightingale who refused to die for tradition.

But some of its oldest secrets are still buried beneath its halls.

Months after Wella Larksong's Ascension changed Hallowmoon forever, twenty-year-old Petra Vey is helping uncover the records Archchancellor Vermillion tried to hide. Her starblood has always been considered too weak to matter, but Petra possesses a stranger gift: she can hear traces of music lingering in places where the musicians are long gone.

Then a woman begins singing from behind a solid wall.

With guarded Lumenguard Soren Varimir at her side, Petra follows the voice into a secret passage beneath the Academy—and discovers a prison that appears on no map.