Seventeen-year-old Aderyn ("Ryn") only cares about two things: her family, and her family's graveyard. And right now, both are in dire straits. Since the death of their parents, Ryn and her siblings have been scraping together a meager existence as gravediggers in the remote village of Colbren, which sits at the foot of a harsh and deadly mountain range that was once home to the fae. The problem with being a gravedigger in Colbren, though, is that the dead don't always stay dead.

The risen corpses are known as "bone houses," and legend says that they're the result of a decades-old curse. When Ellis, an apprentice mapmaker with a mysterious past, arrives in town, the bone houses attack with new ferocity.

Together, Ellis and Ryn embark on a journey that will take them into the heart of the...