Frank Fernandez's family never stays in one place for long. His parents renovate unusual buildings and turn them into homes, which means the family moves--a lot. This makes it hard for bookish Frank to make friends. So when his parents announce they're moving to Spectacle Key, Florida, to live in a lighthouse--this time for good!--Frank is thrilled.
But Spectacle Key isn't the perfect forever home they'd imagined. The lighthouse is falling apart. There are knocks on the door--but no one is there--and mysterious sighs and sniffles from nowhere. There's even a creepy doll that seems to move on its own. Could Spectacle Key be haunted?
Then one day while exploring, Frank meets a girl in old-fashioned clothes, with no memory of who she is. What she does know, though, is that the island is under a curse--and she needs Frank's help to figure out how to lift it. But what if learning the truth about Spectacle Key means losing the first real friend he's ever had?