Not recommended:
The idea of the plot and premise has potential, lots of it, especially since it explicitly used Nancy Drew and Jane Eyre as references and inspiration. I mean, as a Nancy Drew enthusiast, the title alone enticed me to read this book hoping for a light, mystery entertainment.
But sad to say, by a fourth of the book, I was beginning to crash out--my passionate annotations show this downward spiral. I know not all lead characters should be likeable, but Charlotte Bells (I often forget her name though) is straight up shallow and pretentious. A lot of things don't add up to her personality, character, and principles. She's a 23 year old woman who considers herself an orphan due to having a neglectful father and an indifferent aunt. The writer eliminates realistic adversities (concerning survival) by making her a former baby food commercial child star with a trust fund, BUT she remains dependent on her aunt. With that kind of financial resource, it is a wonder that she is also unskilled and untrained; she assesses that being a nanny is the only thing she's qualified professionally--that, and being a delusional homewrecker. (She claims to want to become a writer but doesn't really write; she mocks herself for this, but that's just lousy).
The main character is the fatal flaw in this book. I don't expect her to be perfect; but at the very least, as a reader, I expect her to be human--a robust multi-dimensioned character. If Charlotte Bells is who she claims she is--a financially secure woman who is changed by family estrangement and jaded by heartbreak, who has ambitions to become a writer (good with words and reads widely), who intentionally made Nancy Drew a role model, the plot could have been saved.
For someone who claims to be widely-read, the character has questionable stance on female empowerment and foreign people and places. She never acknowledges that her sexual relationship with her former employer is wrong; she actually believes that being a good nanny will make her a better mother to her lover's kids. She is unapologetic with her choice; all she laments is how it hurt her, never how it showed that her morals aren't intact. And see, so when faced with a similar situation, she falls for her charge's father again BEFORE confirming if his wife is still alive. She is delusional.
The epilogue attempts to tie all loose ends and rushes into Charlotte Bells' defense on why there's no character development within the plot (it implies that all the character development happened after the plot), yet it comes off as lazy writing. Also, the male lead's character is so flat. He's like an NPC with unremarkable personality, that the real mystery here is how Charlotte Bells fell in love with him. Like, what? Really? She just sees the man on an irregular basis and banters uncreatively with him, and then boom, feelings? That is the real mystery.
If the author would write a sequel that would put Charlotte Bells in a similar situation BUT this time, with character development, that would be one way to redeem the lead character.