Maree Webster hates school and is obsessed with angels and fallen angel stories. Life is boring until she decides to steal a famous painting from a small art gallery that has been haunting her dreams: swirling reds, grays and oranges of barely discernible winged figures. There, she meets a stranger who claims to know her and stumbles into a world where cities float in the sky, and daemons roam the barren, magma-spewing crags of the land far below.