Daemon Czar has activated the Harmony Grid, and the people of Titan are panicking…
Eden, Elvandra and Ginny are thrust together in their fight for survival as they cross a post-apocalyptic world in search of a newer, better sanctuary.
Ever since the meteor NORA struck the planet, plunging what remains of Earth into six months of darkness, the human race has survived in Titan, a purpose-built underground ark.
But with the darkness comes freezing temperatures, an unexpected war with the banished, and hungry, crazed mutants who aren't quite what they seem..