Annette Cascone and Gina Cascone

Annette and Gina Cascone are American sisters and prolific writing duo, known collectively as A.G. Cascone, who have co-authored over twenty-eight books including young adult thrillers and the middle-grade horror series Deadtime Stories, adapted into a Nickelodeon TV series. They also co-wrote the 1990 feature film Mirror, Mirror and contributed to series like Goosebumps. Both live in Central New Jersey.[1][2][3][4]