When Neverfell, who has no memory, arrives in Caverna, her facial expressions make her very dangerous to the people who live with blank faces or pay dearly to learn to simulate emotions. In the underground city of Caverna, craftsmen create wines that remove memories, cheeses that make you hallucinate, and perfumes that convince you to trust the wearer, even as they slit your throat. The people of Caverna have faces as blank as untouched snow; only...

In the year 241, twelve-year-old Lina trades jobs on Assignment Day to be a Messenger to run to new places in her decaying but beloved city, perhaps even to glimpse Unknown Regions.

When Gran and his family move to Carousel, he has no idea that the town is built atop a secret. Little does he suspect, as he walks his sister to school or casually eats a banana, that mysterious forces lurk mere inches beneath his feet, tearing up the earth like mini-hurricanes and causing the town to slowly but surely sink. When Gran's friend, the difficult-to-impress Catalina Catalan, presses a silver handle into a hillside and opens a doorway...