A breathtaking novel from the award-winning author Nalo Hopkinson about two women, two worlds, fated to encounter one another. Sheeny lives in a world scoured clean by the glass wind that comes roaring out of the empty space where a mountain used to be. A wind whose gusts can strip flesh from bone and whose breezes leave a dust of glass so fine it accumulates in the lungs with every sip of air. Delpha lives in an otherwhere, an otherwhen in which no glass wind blows. Her world is poised on the precipice of its reality, needing only the faintest push to fall. And if that should happen, there will be no picking up the pieces. Two women, two worlds, rush toward a shattering collision. Unless...