So, immediately after finishing Nightpeople, I started reading Skyfall - the second book in Eaton's Darklands trilogy.
Whilst set in the same universe, it continues the story told from the perspective of the aforementioned "Nightpeople" a.k.a. the human race a thousand years later, living in protective domes in the sky. From the book's title, and from occasionally not-so-subtle usage of the phrase "the sky is falling", the human race's future survival is not guaranteed, and it's only a matter of time until it all falls apart.
Central to the story is Larinan, or Lari, the youngest son of Dernan, the head of the Darklands Genetic Adaptation Program (DGAP) - through which we, the readers, learn about the actions of the "Nightpeople" from the first book. As he learns about the reason that he was born (against the society's policy of having equal numbers of male and female children), and the mysterious girl, Saria, who has been brought in from the Darklands, it becomes clear that time is running out for everybody, as both the life support technology and the social framework begins to rapidly erode.
This is a very different book to the first, resolving a number of unanswered questions and bringing a new perspective to Eaton's universe. As speculative fiction, it explores a number of philosophical questions - the central one being the idea of entropy, and how long a society can sustain itself without adapting or changing. Again, there are also echoes of political issues - this time, the theme of ignoring the scientific evidence or impending doom in favour of maintaining social order is reminiscent of the Australian government's stance on Climate Change and dismantling of agencies with the task of investigating and advising on action.
Furthermore, Eaton's decision to follow an ensemble of characters, which chapters switching between various points-of-view, helps keep the action moving quickly, as there is a lot going on, especially with the book's explosive climax.
So, again, a thought-provoking page-turner, which left me itching to pick up the final book, "Daywards"...