The Secret of Pembrooke Park

Well...I seem to have somehow read a different book than my friends did. And my first Klassen dud, sad to say.
Yes, the story drew me in and kept my attention the whole time. The mystery was good, but there could have been so much more.
For one thing, Abigail is the practical one in her family...always taking care of things, even advising her father's investments. (?!) However, her one goal seems to be the getting of a husband, and her one prospect seems to have just fallen rather quickly for her sister. And then... she goes to the country and suddenly finds herself with three in pursuit? Despite her family suddenly being in reduced circumstances and her dowry being gone? Then, the lengths she goes to would certainly ruin her reputation in minutes...no matter who's judging. Supposedly-practical Abigail exits not just her room, but the house in nothing but nightgown and shawl in the middle of the night and goes to the home of a single man (seriously, she couldn't even throw on a dress?). She also is alone with him repeatedly. And she tops it all off by staying several days in the house without a chaperone with a distant relative who may or may not be dangerous and is definitely a suitor. This stretches reality in nineteenth-century English society way past the breaking point.
Then the hero. William starts out as a likable young fellow...and then falls for Abigail way too fast. And promptly proceeds to forget he is first a man of the cloth and second a man of honor. He is so enthralled with her that he forgets half his sermon after looking into her face, and then has the gall to be offended when an older woman in the congregation complains to him about the brevity of his four-paragraph message. Yes, all of four paragraphs. He cannot keep his mind off her ripe red lips and the contours of her face and body, nor off his desire for her (which from the text is at least as much a physical desire as anything else). We aren't treated to any private thoughts of a draw of friendship; only mostly for his desire for her body...a kiss or a hug at least. It's bad enough when she feeds him mulberries in the rain...it gets much worse when she is out walking and stumbles across him fresh from a swim, wearing only his breeches. And not only does he speak to her, but he comes near and provocatively towels himself off, teasing her meanwhile, only barely stopping short of outright seducing her. Not that she would mind, I suppose. This scene in particular was highly offensive and something that I would not like in a secular book, much less in a "Christian" book coming from a preacher. And later he tells her, in another scantily-clad moment (at least this time he's got on a shirt), that sorry, he's drawn to her, but he's not able to marry. Seriously?? And she responds to that by kissing him??
The mystery bits were interesting, but it kept getting put to the side by William and Abigail and sometimes Gilbert having dalliances. And the POV changes between William and Abigail were often abrupt and confusing, even in the middle of paragraphs.
Content warning (my, never thought I'd have to do this with a Klassen book!): 18+ for excessive and frequent sensuality.