Twelve-year-old Georgie can see ghosts. At least one ghost. A ghost who has been living in her house for almost eighty years. A ghost who happens to be her great great grandmother. While Ana, the ghost who wears a giant peace sign and flowers in her hair, has been appearing in Georgie's dreams for as long as she can remember, she has only recently been able to see her when she's awake. Georgie's little brother Matty has always been able to see her. He might be only four, but he's scary smart, and he's learned to keep his thoughts to himself when he's speaking in his head to Ana. It takes Georgie a while longer. While she's not sure what to make of this turn of events, she's happy to have the company, especially since she doesn't really fit in with her so-called friends at school, and since her best friend and next-door neighbor Nicky has basically dumped her, or ghosted her, as she likes to say. At least now she has someone to talk to. And, although they tend to squabble more like siblings than great great grandmother and great great granddaughter, they have a lot of fun together. But Georgie's relationship with Ana, the hippy ghost of the 60's, turns out to be a lot more than just fun. While Ana teaches Georgie about fashion, music, and the protests of the 60's, she also helps Georgie find a way to make friends and recapture the friend she's lost. And Georgie helps Ana solve the mystery of why she's still stuck between two worlds.