The Tessilari are fallen.

It's what the people of Masidon believe. But Jey knows the secret of the hidden school where young ladies in white dresses walk among brillbane bushes teeming with tiny, winged, tessili. Jey knows these students live quiet lives of learning, excepting those nights they slip out to infiltrate the sleeping city on the other side of the river. Jey knows what they do when they go, and she knows why they come back.

Jey knows much. Too much. Tessili Academy has decided it's time for her to die.