Lizzie is now an established member of Fitzy's Circus, but when the circus arrives in Kensal Green they are plagued by accidents and sickness--and Lizzie needs to put her psychic talents to use to solve the mystery of a graveyard haunted by a devil hound.

Mary W. Chase died on Nantucket Island just over one hundred years ago, but she is still there, in the house she once lived in, and she wants to keep it that way-- but first she must somehow contact a group of children who are interested in preserving historic homes on the island.

"Molly and her brother, Michael, agree that their new stepsister is a spoiled brat.  Mom wants Molly to watch out for Heather, since she's only seven.  But Heather only wants to make trouble for Molly and Michael.  She lies and tattles and misbehaves, and somehow they  get the blame.  They know she's trying to drive a wedge between her father and their mother, who recently married, so she can have her father all to herself--and it seems to be...

"Ophelia Harrison used to live in a small house in the Georgia countryside. But that was before the night in November 1922, and the cruel act that took her home and her father from her. Which was the same night that Ophie learned she can see ghosts. Now Ophie and her mother are living in Pittsburgh with relatives they barely know. In the hopes of earning enough money to get their own place, Mama has gotten Ophie a job as a maid in the same old manor...