A debt twenty cycles old just found its way home.
Twenty cycles ago, master blacksmith Jon Thorne traded his soul for a quiet life in the woods. He told himself the hammer had buried his past. The copper-scented dark of the Unbound Stygia does not forget a debt, and it has just remembered his address.
When the Wyrdglass stirs to life in his daughter's hands, the wards protecting their home fail in a single breath. Something shadow-bound steps out of the storm. Somewhere behind it, a queen built of bone and borrowed light begins her march — wearing a face Jon prays he's wrong about.
To protect the only light left in a world turning to bone and ash, a crippled smith must lead his daughter straight into the fire he swore he'd never touch again.
