Not virtues in the sense of goodness or morality, but forces—each with its own qualities, relationships, and ways of moving through the world.
Cassia Alarian has spent thirty years mastering the six harmonics that hold civilization together.
Then someone builds a device that challenges everything the Conservatory has taught about how harmony works.
Cassia is sent to determine whether it is revolutionary or a fraud.
The device works.
And what it produces is almost perfect.
Almost.
What begins as a professional investigation draws Cassia across Aivera in search of an explanation for something she can perceive but cannot yet name.
The answers will force her to reconsider the institution that shaped her, the expertise that defined her, and whether mastery and understanding are always the same thing.