A young English boy decides to establish a sanctuary for an assortment of ghosts when the homes they have haunted are replaced by highways and other modern "improvements."

Determined to protect her historical family home from Emperor Napoleon's orders to renovate 1860s Paris, Rose Bazelet establishes a defense in the basement of her house on rue Childebert and records her experiences in letters to her late husband.

After the wealthy Darcy family moves in across the street, Zuri is forced to find common ground with Darius, while struggling with her four wild sisters, a handsome boy vying for her attention, and college applications.