The Au Pair by Emma Rous
Emma Rous' The Au Pair is touted to be a mix of V.C. Andrews and Kate Morton. I'm not familiar with Kate Morton, but I read many V.C. Andrews stories as a teen. I would agree with that thought.
After her father's death, Seraphine Mayes is reeling. She comes across a photo in the family estate and wonders why only one of the infants is in the photo with the mom she never knew. She and her twin Danny were left behind when their mother jumped off a cliff shortly after their birth.
After the suicide, the family's beloved au pair left for good. Seraphine's older brother never understood why. He lost his mother and his nanny in one day. Their father was the last link they had to the past.
Seraphine decides to investigate and learn the truth about her mother's suicide and why only one baby is in the photo. Soon, she is receiving threatening messages. Someone doesn't want her to uncover the truth.
There's a mix of good and bad to be found within The Au Pair. The story is told from Seraphine's point of view in the present day and the au pair's point of view in the past. I found the narrative moved swiftly and kept the story progressing.
The bad is that I pegged the outcome and the real events that day far too early. Despite the townspeople believing the family was cursed, I had it pegged. I think that's why I found it so reminiscent of V.C. Andrews.
This story had me hooked. It is predictable, but I became so involved in the lives of both past and present characters that I couldn't stop reading.