The steerswoman's road

Fascinated by the opalescent, perfectly smooth jewels, Rowan pursues the secret of their origin, a quest that leads her to secretive wizards who kill without compunction, in The Steerswoman, while in The Outskirter's Secret, determined to learn the truth about the Guidestars, points of light that hang motionless in the sky, Rowan sets out into the perilous Outskirts, in an omnibus volume.