Sky 3: Emerald Mara

The legend of Muldoin continues. Nick and Anna struggle to save Ground 42 from exploding in civil war. Anna's father has either murdered five scientists or has been framed for it. The Special Police colonel responsible for the uprising has lost access to his anti-psych meds. Two brothers show up to lead Nick and Anna to areas of the World kept secret for centuries. And Detritus Machine, the most fearsome Deformer in the history of the Deformer Corps, wreaks absolute destruction on everything that stands between himself and the object of his fury.

Sky3, Emerald Mara, extends the story of an enormous, self-contained World that was constructed over seven hundred years in the past. The World houses over eighty million people who have no knowledge of what, if anything, exists outside the walls. Until one of them finds out.