Showing Olivia Kidney and the Secret Beneath the City | Olivia Kidney Hot on the Trail by Ellen Potter
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All Olivia wanted was a normal life. But that's not possible for a girl who can talk to spirits. Her world gets even madder when she begins to investigate a mysterious anthropologist who lives in an underground maze. There she meets ghost kids who have been trapped for over a hundred years. Helping them out is one of her wildest challenges yet!