City of Ghosts by Victoria Schwab

City of Ghosts was the perfect amount of spooky atmospheric location plus terrifying ghost story. When Cassidy goes to Edinburgh, Scotland to shoot on location with her parents, "The Inspectors", she gets more than she bargained for. Her parents are ghost experts and are filming their new show there. What they don't realize is that Cassidy can really see ghosts, and not all ghosts are friendly. When she meets another girl who can also see ghosts, she gets tangled up with a ghost that preys on children. I loved this story and can't wait for the next installment. Recommended for grades 5 and up. 

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