The conclusion to Ken Liu's chronicle of the Dandelion Dynasty, which sees two empires face a whirlwind that threatens to utterly consume them.

Ukyu-Gondé.
Stalked by foes and dogged by betrayal, Princess Théra is pursued across a continent vaster than she could ever have imagined, to the hidden valleys of the World's Edge Mountains, into the barrows and subterranean halls of the City of Ghosts, across the ice floes of the far north. She breached the Wall of Storms intent on taki ...