Pekin Dewlap hasn’t seen a ghost since she was twelve. But she’d do anything to get them back. Starting a ghostbusting business with her two best friends, Amber and Scout, seems like the perfect way to accomplish her goal. Of course, playing with ghosts isn’t high on their wish list, so Pekin has to do some arm-twisting to get them on board. Once committed, Pekin and her friends find themselves in deep, trying to solve the disappearance of fourteen-year-old Miranda Talbert. Miranda went missing in 1918, and her spirit has wandered the halls of Elmwood Manor for the last hundred years. In the midst of finding Miranda, discovering her budding feelings for Scout, and consoling a terrified Amber, Pekin is met by an angry ghost set on thwarting her plans. Will the Ghosties be able to help Miranda, or will Pekin’s business die before she solves the mystery?

A heartbroken ghost searches in vain for her baby. Pekin Dewlap and her best friends Scout and Amber are hired to help her spirit go into the light by the kindhearted homeowners who've grown fond of the crying ghost. The teens move into the house while their clients are on a cruise, and their first order of business is to find out the ghost's identity. A neighbor is able to provide the name of the house's last owner, and the story of how his wife died in childbirth. Now, armed with the ghost's name, along with those of her husband and baby daughter, it's time to set the ghost free. However, it isn't as easy as the kids expect. First, Lily the ghost doesn't seem to be aware of their presence, and when she finally "sees" them, she becomes angry and destructive. The Ghosties track down Lily's husband and daughter to ask for their help, but much to their surprise, their invitation is met with hostility. The father has secrets of his own that he must protect. If Pekin and her friends can't convince the father to help them, they may never be able to set Lily free, and send her into the light.

The ghost haunting Wisteria Gardens Antiques appears to be a charming and loving mother who can’t stand the thought of being separated from her son. But appearances can be deceiving. The Ghosties are moved by her expression of devotion, until they discover the truth. Her attachment to the real world has nothing to do with love. As the teen ghost hunters struggle with the case, Althea’s determination to stay threatens their very lives. Will Pekin, Scout and Amber convince the ghost to move on before it's too late?