French Quarter Clues: The Mystery House Series: Book Three

Apparently, Marie Laveau can reach beyond the grave . . .

 

When Ellen and Sue discover that a demon is attached to Tanya, the three friends fly to New Orleans to enlist the help of a Voodoo high priestess. Soon they learn that Tanya's life depends on them finding and consecrating the remains of a "Devil Child," cared for by Delphine LaLaurie and Marie Laveau. The key to finding the remains is hidden in