Evil haunts the Witches' Bridge... the foggy marshes... the old Pride house!
Now young Dan Pride has come to live there. Can he escape the terror that hangs over Witches' Bridge?
That night, Dan sees a weird light, flickering out on the marsh.
"D-A-N" the light spells out in code.
I read this book so long ago, but just typing in that description, I kinda remember it! Good mystery!