Max Monroe, after discovering a detective agency in his grandfather's backyard, befriends the ghost of his great-uncle and the two join forces to solve the mystery of a missing birthday girl.
Recovering from the flu that has decimated the world in 1918, Ivy, a girl with the ability to see ghosts, is shattered by the breakdown of societal governance and her father's and brother's role in the murder of a young German.
Cassidy, feeling left out at Ghostville Elementary, finds a creepy old doll that even the ghosts seem to be afraid of, and soon realizes she has the power to learn ghostly secrets.
When Jack enters the deserted house in his neighborhood, he finds a group of people who invite him to take the thirteenth chair in the room and share a story--in the house where the ghosts meet.
In 1932, in Sydney's deadly Razorhurst neighborhood, where crime and razor-wielding men rule, two girls with contrasting lives who share the ability to see ghosts meet over a dead body and find themselves on the run from mob bosses.
