Finished: Her One Mistake (Perks) A page-turner about a young mother who leaves her four-year old daughter in her best friend's care at the school carnival, only to have her best friend lose sight of her child, resulting in her abduction. Harriet has never been separated from her young daughter, Alice, when her best friend, Charlotte, finally convinces her to let her babysit Alice while Harriet takes an accounting course at the college. Harriet is a stay at home mom with a very controlling husband, Brian. Charlotte is a divorced mother of three young children, who is on good terms with her ex-husband. Harriet is meek and shy, while Charlotte is outgoing with lots of friends, yet they form an unlikely friendship, having similar backgrounds where their father's left their lives at a young age. Friends for several years, Harriet is the only person she trusts to keep Alice for her. Charlotte takes her children and Alice to the school carnival, and doesn't keep quite the eye on the kids that she should when she lets them loose on the giant bouncy house slide. When her kids return from the slide but Alice does not, she soon realizes, along with the rest of the people at the carnival that Alice has been abducted. A police investigation ensues with Charlotte questioned relentlessly for focusing more on her cell phone social media than watching the kids. She soon becomes the pariah of the town. The investigation also focuses on Brian, who we find out has been patiently making Harriet think she's been going mad over the last year because he wants to exert complete control over her and have her totally dependent on him. The ending is actually a surprise as it turns out the meek Harriet has actually arranged for her daughter's own kidnapping by her estranged father who had come back into her life only a few months before. Having watched her father and Alice spend alot of time together and form a bond, Harriot feels confident that her plan will work and her father will help her get away from Brian along with her daughter. The ending is suspenseful, as Brian finds out where the grandfather and Alice are and endangers everyone's life. Charlotte, after hearing the awful truth from Harriet, still comes to her rescue in the end and helps save her from the maniacal Brian. The grandfather protects Alice with his own life, and Harriet and Charlotte are never friends again...but Brian is lost at sea and presumed dead. Though...his body is never found. Possible sequel? hmmmm :-)