Evie Von Rathe has been home for only a few weeks from her adventure in the strange world of seven houses when Blight Harbor's beloved ghosts begin to disappear. Did they leave without saying goodbye, or has something gone horribly wrong? Soon Evie is invited to a mysterious council meeting, where she learns about the Dark Sun Side and a terrible secret.

Yes, the ghosts have gone missing. And that means serious trouble.

With the help of an eleven-year-old (or 111-year-old, but who's counting) ghost named Lark, trusty Bird, and a plump ghost spider, Evie must find a way to defeat the vicious Nighthouse Keeper responsible for the missing ghosts, save her otherworldly friends, and find her way home from the Dark Sun Side before she's trapped there forever.