The Dollanganger series is a collection of novels written by author V.C. Andrews. The series begins with the book "Flowers in the Attic," which tells the story of the Dollanganger children who are locked away in an attic by their mother. The narrative explores themes of family, betrayal, and the impact of dark secrets. The series continues with several sequels, including "Petals on the Wind," "If There Be Thorns," and "Seeds of Yesterday." Each book delves deeper into the lives of the Dollanganger family, revealing their struggles and the consequences of their past. The series has gained a cult following and is known for its gothic elements.