As the leader of the moon's newest "dragon", Adriana has wrested control of the moon's helium-3 industry from the Mackenzie Metal Corporation and fought to earn her family's new status. Now, at the twilight of her life, Adriana finds her corporation, Corta Helio, surrounded by the many enemies she made during her meteoric rise. If the Corta family is to survive, Adriana's five children must defend their mother's empire from her many enemies - and each other.

Corta Hélio, one of the five family corporations that rule the moon, has fallen. Its riches are divided up among its many enemies, its survivors scattered. Eighteen months have passed. The remaining Hélio children, Lucasinho and Luna, are under the protection of the powerful Asamoahs, while Robson, still reeling from witnessing his parents' violent deaths, is now a ward - virtually a hostage - of Mackenzie Metals. And the last appointed heir, Lucas, has vanished from the surface of the moon.

Neal Stephenson’s sweeping, prescient new novel transports listeners to a near-future world where the greenhouse effect has inexorably resulted in a whirling-dervish troposphere of superstorms, rising sea levels, global flooding, merciless heat waves and virulent, deadly pandemics. One man has a Big Idea for reversing global warming, a master plan perhaps best described as 'elemental'. But will it work? And just as important, what are the consequences for the planet and all of humanity should it be applied?

Idris has neither aged nor slept since they remade his mind in the war. And one of humanity’s heroes now scrapes by on a freelance salvage vessel, to avoid the attention of greater powers. Eighty years ago, Earth was destroyed by an alien enemy. Many escaped, but millions more died. So mankind created enhanced humans ­such as Idris - who could communicate mind-to-mind with our aggressors. Then these ‘Architects’ simply disappeared, and Idris and his kind became obsolete.

Thousands of years ago, Earth’s terraforming program took to the stars. On the world they called Nod, scientists discovered alien life - but it was their mission to overwrite it with the memory of Earth. Then humanity’s great empire fell, and the program’s decisions were lost to time. Aeons later, humanity and its new spider allies detected fragmentary radio signals between the stars. They dispatched an exploration vessel, hoping to find cousins from old Earth. But those ancient terraformers woke something on Nod better left undisturbed. And it’s been waiting for them.