The northern mining town of River Meadows is one of three hotspots in the world producing ghost ore, a new source of energy worth twenty-eight times its weight in gold. It's also linked with slippages of time and space that gradually render the area uninhabitable. After the town is evacuated, the whole region is cordoned off, the new no-go zone wryly nicknamed "the Park." Three intertwined stories flow from the disaster of River Meadows. Alex Hewitt and his sister, Amery, were among the first to be shipped out of the contaminated town. Now an accomplished game designer, Alex has moved on, but his sister has not, making increasingly dangerous break-ins to save animals trapped in the toxic wasteland. When at last she fails to return from a trip inside the fence, Alex flies to River Meadows to search for her, enlisting her friend, Michio Amano, a mathematician who needs to transcend the known laws of physics if he and Alex are to succeed. Claire Foley ran away from River Meadows as a teenager and now traffics in endangered wildlife. As Alex and Michio search for Amery, Claire arrives in an island nation under threat of environmental catastrophe to retrieve her greatest prize yet, only to find herself facing a life-altering choice. And, finally, in a future as distant as myth, a flock of birds sets out on a dangerous journey to prevent the extinction of their ancient enemy, humanity. The account they hand down is an Epic of Gilgamesh for our times, illuminating the wisdom of nature and our flawed stewardship of the planet.