The Stone Key is a 2008 science fiction novel by Isobelle Carmody, set in a post apocalyptic world. It is the fifth book in the Obernewtyn Chronicles.
The Stone Key first edition cover.
Wavesong cover
Isobelle Jane Carmody is an Australian writer of science fiction, fantasy, children's literature, and young adult literature. She is recipient of the Aurealis Award for best children's fiction.
Carmody at a writing event in 2012