Spooksville.  That's what the kids call it.  Because scary things happen here.  Supernatural things.  And not all monsters wait till the sun goes down . . .
She's beautiful and charming.  She can be kind, she can be cruel.  And she knows everything that goes on in Spooksville.  Is Ann Templeton a witch?  
Sally's convinced she's evil, but Adam and the others aren't so sure.  
There's only one thing for it - they'll have to explore the castle where she lives . . .