"Explores the history, science, architecture, and mythology of the subterranean landscape, discussing the nature of human relationships with caves, catacombs, subway systems, and abandoned mines"--OCLC.
In an isolated, matriarchal society, Jena embraces her role as one of the few, honored girls who mine life-sustaining mica. But when she learns how far the Mothers will go to ensure their people's survival, she begins to question everything.
Emmett Atwater and the other Genesis spaceship survivors are caught between Babel and the indigenous Adamite population when they are sent to extract nyxia, the most valuable material in the universe.
When the puppy they are dog-sitting falls down a hole in the park, Squishy and her "bonus" sisters, the twins Vee and Jesse, discover a tunnel that leads down to the Yarra River in Melbourne, and a secret: the Zoom Mining company is dumping something (toxic waste?) under the public park--and the three girls resolve to expose the company.
"Christopher, Elena, and the other survivors of the attack on their space colony know two things: their victory over the Landers will be short-lived and a new wave of attacks is imminent"--Provided by publisher.