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-Gond. Stalked by foes and dogged by betrayal, Princess Thra 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 taking war to the Lyucu homelands, but how do you conquer the unconquerable?Dara. Empress Jia, Prince Phyro and Pkyu Tanvanaki find themselves bound to paths they never would have chosen. Amid atrocity and subterfuge, they will discover that the Courage of Brutes is no substitute for the Grace of Kings, and that little separates the Grace of Kings from the Madness of Tyrants.On both sides of the Wall of Storms, defeat's bitter tears mix with the fruits of knowledge new and ancient as two empires bound by blood and bone, by writ and iron, by time and custom, face a whirlwind that threatens to utterly consume them.The teeth, as they say, are on the board.