In a near-future world where hurricanes are weekly events, Eleanor escapes with her family to an abandoned beach town on Shadow Key after a storm destroys her school. There, she stumbles upon a strange and eerie discovery- a small colony of ghosts, each with their own peculiar story: a homesick pirate, a lovesick countess, the mysterious Nameless Mute Gentleman, and The Fabulous Singing Siren Sisters.

But the ghosts are in danger. Tentacled sea monsters called Oldies are stalking their souls, and with rising sea levels and more storms on the way, the ghosts' time is running out. As a terrifying new storm approaches, Eleanor must rescue a ghost lost at sea and save her friends from the Oldies in a final, storm-chased battle of song against darkness. Wonders of Shadow Key is a quirky, suspenseful tale of one girl' s fight to use her voice for good.