Yes, there is a part 2 to V.C. Andrews' Flowers in the Attic series. It's called Petals on the Wind. In this continuation of the series, we find that the main characters, Cathy, Chris, and Carrie, have been reunited but still must deal with the repercussions of the shocking secrets of their past.
The story continues ten years after the events of Flowers in the Attic. We see the siblings struggle to recover from a number of traumas in order to find their place in the world and come to terms with their complex family history. Growing up in a household that was full of secrets and lies, the protagonists must negotiate a delicate relationship between the past and their newfound freedom.
With each of their hearts broken by their tumultuous past, they soon discover that they will have to come together to survive and move on from the abuse that they had suffered. Along the way, they also find themselves exploring issues of identity, loyalty, and love.
Petals on the Wind serves as an emotional and powerful sequel to Flowers in the Attic and will take readers on a journey deep into the resiliency of the human heart. If you're looking for an emotional and captivating ride, this is the book for you.
You can learn more about Petals on the Wind and purchase it at: https://www.amazon.com/Petals-Wind-Flowers-Attic-Novel/dp/1451683089