Jane's adventures have gained her many loyal allies and unique abilities, and both will be put to the test as she finds herself at the center of an eight hundred year old mystery.

The adventure starts with an urgent message from one of their old friends, the exorsage Gina von Corvinus, that brings them back to the edges of Perdico. Their friend informs them of troubles in the paradise of the Spiritus Academy, the training ground for the exorsages. A spirit has them stumped, and Gina wishes to try Jane's unique abilities against the fiend.

Jane reluctantly accepts, and they leave behind Caius and Sage for the women-only campus of the spirit defenders. There they find their elusive ghost, but matters aren't as easy as sending them on their way. They're bound to an oath made in life and won't leave until the job is finished. To make their job harder, there's something amiss in the administrative halls of the academy. Something that hides a dark secret that threatens to destroy anyone to get what it wants. Jane must fight to free the spirit, otherwise she may just lose her own.