Everything We Never Said by Sloan Harlow
Dead Girls, Diaries, and Dark Secrets: A Review of Everything We Never Said
Spoiler Warning: This review contains major plot twists and the full ending. Proceed only if you're cool with that.
I was very pleasantly surprised by how much I enjoyed Everything We Never Said by Sloan Harlow! This YA thriller hit all the right notes: fast-paced, suspenseful, emotional, and—of course—twisty. It starts with a bang (okay, technically a car crash) and spirals into a tangled web of guilt, lies, and buried secrets.
We follow high school senior Ella Graham, who’s still reeling from a tragic accident that killed her best friend, Hayley Miller. The thing is... Ella doesn’t really remember the crash. But she knows she was behind the wheel, and the guilt is slowly eating her alive. It only gets worse when she starts catching feelings for Sawyer Hawkins—Hayley’s boyfriend at the time of her death. Yikes.
While helping Hayley’s mom sort through her things, Ella stumbles upon something unexpected: Hayley’s journal. And instead of doing the right thing, Ella steals it. Because of course she does.
The journal is full of cryptic entries. Hayley writes about someone she calls "S," someone who was clearly abusive and manipulative. Ella assumes at first that S = Sawyer, and it makes her start to question everything—including whether he might’ve had something to do with Hayley’s death.
As Ella reads on, we meet a cast of suspicious characters:
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Sawyer, who's acting increasingly intense and overprotective
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Seema, a supportive friend who encourages Ella to follow her heart
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Sean, Haley's mom's abusive boyfriend who's always ogled at Ella.
Things escalate when someone breaks into Ella’s bedroom, and she’s convinced it was Sawyer looking for the journal. She reports him to the police, and he’s arrested. Meanwhile, she leans more and more on Mr. Wilkens, who even invites her to his house when things get tense... and that’s when the story flips hard.
Mr. Wilkens, it turns out, goes by his middle name—Sam. As in, "S." His house has all kinds of clues from the journal—including a dent in his car's bumper. Before Ella can react, he knocks her out and locks her in the basement. Major nightmare fuel.
But plot twist: she’s not alone. Hayley is alive. She faked her death to escape Sam’s abuse and shows up just in time to save Ella by killing Sam with a baseball bat. (Not quite the heroic reunion we were expecting, but hey, it works.)
Hayley, now going by Hazel, explains everything. She had been forced to pretend to date Sawyer to hide her real relationship with Sam. When things got dangerous, Sawyer helped her fake her death. Ella was never supposed to find out.
But now that she has, Hayley plants evidence to make it look like Ella killed Sam in self-defense. Then she disappears again.
The book ends with Sawyer out of jail, Ella recovering, and Hayley still in hiding.
⭐ Final Thoughts & Rating
Even though the twist was a little predictable, I wasn’t actively trying to guess who “S” was, so the ending still packed a punch. The writing is sharp, the pacing is strong, and the emotional beats feel genuine. My only minor gripe is the classic memory-loss trope: why didn’t Ella revisit the scene of the crash sooner? That’s usually Day One in regaining repressed memories!
⭐ My Rating: ⭐⭐⭐⭐ (4 out of 5 stars)
Fast, twisty, and full of emotional depth—this is a great pick for fans of YA thrillers with secrets, trauma, and high school drama.
📚 If You Liked Everything We Never Said, Try These:
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We Were Liars by E. Lockhart – A haunting story of grief and memory with a devastating twist
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The Cheerleaders by Kara Thomas – For more high school mystery with dark secrets
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All the Dangerous Things by Stacy Willingham – An adult psychological thriller also driven by memory loss
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You’ll Be the Death of Me by Karen M. McManus – A fun, twisty ride with secrets and betrayal
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Pretty Girls Make Graves by Steacy Easton – A darker, more literary look at trauma and identity
💬 What did you think of the twist? Did you guess who "S" was before Ella did? Let’s chat in the comments!

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