I've had this one on my wish list and just noticed it's free, for today at least.
This is the blurb: "Charlotte Abernathy is foul-mouthed and free-spirited, but she hides a dark secret: twenty years ago, when she was just eight years old, Charlotte vanished while playing near her family's home. Despite a frantic search, no trace of her was found until a year later, when the little girl turned up on the doorstep with no memory of where she'd been.
Today, Charlotte has put her mysterious ordeal behind her, even though she's never learned where she was during that missing year. Her life's a mess, and she spends most of her time trying to annoy her sister. However, when Charlotte's eight-year-old niece vanishes in similar circumstances, a fully-grown Charlotte is forced to make a fresh attempt to uncover the truth.
The Girl Who Never Came Back is a psychological thriller about a woman who is forced to confront her family's dark past. In the process, she begins to unravel the secret surrounding her disappearance, the horrific truth about her niece's fate, and the identity of the ghostly figure that still seems to haunt the family.
Total word count is approximately 57,000. Please note that this book contains frequent bad language and mild, infrequent violence. Also includes a short preview of The Dead and the Dying."
No idea if it's any good or not, but it's free so I've downloaded it to give it a try.