Heather Day Gilbert is both a valued Goodreads friend of mine and a favorite mystery writer of both my wife's and mine (though I personally like her Viking-themed historical fiction even better). Unlike some of her books that I've reviewed here, this one didn't come to me as a review copy; but she did graciously donate a copy to the Bluefield Univ. library, where I checked it out. It was another book that Barb and I read together.
This particular book was a new departure for the author, in multiple respects. If I understand correctly, it's her first stand-alone novel, all her others being series fiction. And while she's a veteran writer of traditional mysteries and especially of those in the consciously "cozy" sub-genre, this represents her first foray as a writer into the "psychological suspense" branch of the genre, though she's always been fond of the latter as a reader. (Novels of this type, like all mysteries, feature skullduggery by a mysterious and unknown perpetrator(s); but they concentrate more on the inner psychological state of the usually female protagonist, and on developing a mounting sense of fear and suspense in the reader's mind, rather than on a reasoned effort to proactively solve the mystery by putting together clues, etc.) It's also her first novel to feature a main character who (like one of Heather's grown-up daughters) is neurodivergent, having a high-functioning form of autism, sometimes referred to as Asperger's syndrome.
For me as a reader, the book was also a departure from previous experience, in both of the latter respects. Despite having at least one Goodreads friend who's autistic, I don't know anyone on the spectrum in my face-to-face world, and have never before read a book with an autistic protagonist, or even an autistic character. (And I've seen no more than one or two cinematic portrayals of this condition, either.) So for me this was an educational read in that respect. More importantly, even though I've been a mystery fan since childhood, I've never been very drawn to the "psychological suspense" category of the genre. Unless you count the many paperback Gothic mystery/romances I read as a kid who'd pretty much read anything (and my grandmother's bookshelves held tons of them!) as examples of the type, I've never read a book of that sort. (I don't put The Mysteries of Udolpho or Jane Eyre in this category.) Both the cover copy and one of the quoted blurbs from a fellow writer mention Alfred Hitchcock as a sort of prototype for this book; but I've only watched one of his films in my entire life, and don't make any effort to watch more.
We begin with a three-paragraph Prologue, in first-person, present tense (Heather favors this style of writing, and continues it all through this book) that finds our narrator fleeing from life-threatening danger, through a woods in the midst of a pouring rain-and-lightning storm, with an injured foot. With our attention engaged, we then drop back a week in time, to the beginning of the first chapter, to gradually read how she got into that situation. This "she" is best-selling, and consequently very wealthy, action-adventure fiction author Alexandra ("Alex") Dubois, in her late 20s or early 30s, divorced for about a year from her gas-lighting and abusive ex, and currently in her home in rural Connecticut, at work on the concluding novel of her series about a highly-competent lady who's apparently sort of a modern distaff version of Indiana Jones. (The first part of the chapter is actually an italicized "excerpt" of what Alex is typing; and if her book were real, I'd definitely read it!) But she's soon interrupted by the receipt of a letter from an "Invested Reader," vaguely threatening dire consequences if Alex doesn't take his/her advice to resolve the series' romantic triangle a certain way. That advice is soon underscored by the next letter, thrown through a window wrapped around a brick. Not to worry, though --her editor owns a "cabin" (actually, more of a log luxury palace!) in the wilds of West Virginia, which the publishing house uses for writer's retreats; she can stay there, out of sight and under wraps, until the police find her "Invested Reader." Will this indeed be a heaven-sent haven of refuge? Well ...we'll have to see.
With a main story line taking place in just a week, and at 222 pages, this is a very quick read, with a brisk pace, a naturally readily-flowing style, and a linear plot which tends to end chapters on cliff-hangers that draw the reader to keep turning pages. Alex is likable, and the quirks resulting from her autism are presented sympathetically, realistically (both of the author's older daughters gave input for the book), and respectfully. While she's not fiction's first autistic lead character, she's one of a very few trail-blazers, and I give the author full propers for the portrayal! ("...I hope that if you are on the spectrum," Heather writes in the short Author's Note that precedes the text, "you will feel a connection with her, and that you will feel seen. You are a wonderful creation, and you bring such richness to the world.") Like Agatha Christie, another author that Heather admires, she provides various red herrings to make solution of the mystery more difficult. I deduced the villain's identity in Chapter 7 (out of 27); but was able to only because I've read a LOT of mysteries, and know how they're typically structured. Barb, who's a more typical reader, was completely baffled. (But there was a secondary reveal, along with the big one, that took me totally by surprise, even though the author had hidden a couple of clues in plain sight!)
On Goodreads scale, my rating is a positive one, reflecting that I liked the book. (It will be four stars on Amazon's scale, assuming that they post my review --since I didn't buy the book from them, as I learned earlier this evening from Google, that depends on how much I've spent on their site in the past year, and I don't keep track of that). Barb also liked it, but also not as well as other books by the author that we've read together. In her case, that's mostly because, as a neurotypical reader, she found some of Alex's thought processes at key points hard to relate to. That's the converse of an aspect that I saw as a strength of the book, and so wasn't so bothered by. Some readers might also dislike the short Epilogue, which is spoken/thought by a character who, as all readers know by that time, will die at the end of it. (Obviously, he/she can't subsequently write the Epilogue; but if we understand it as the character's dying thoughts that we're privy to, it works.) My own lower rating is a more a function of my different fictional tastes, which run more towards the traditional mystery, with a hero or heroine who solves it; I'm not the target audience for the damsel-in-distress "thriller," where the denouement has her picking her jaw up of the floor. (I gave it a try mostly just because I've liked the previous books I've read by the author.)
However, this book can fairly be recommended to psychological thriller fans who are the target audience (with the caveat that I can't compare it to the work of other writers in the sub-genre). As a novel written by an evangelical author (though here she doesn't give any attention to her characters' beliefs about religion, if any), it can also be warranted as a clean read without bad language or sexual content, and it's free of any directly-described serious violence.