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Review: Don’t Let It Out by N.A. Betts

October 8, 2026 by A.J. Calvin Leave a Comment

Rating: /10

Synopsis:

The assignment was simple: contain the forest. Don’t let anything out.

FBI Agent Daniela Rojas arrives with a secret mission of her own. To uncover the truth behind Project Greenfall, a classified experiment buried by the Canopy Collective. RCMP Corporal Cade Mercer is there for a different reason. Two years ago, his wife vanished inside these woods. No body. No answers. Only the quiet certainty that something took her.

Now they stand watch at the edge of a quarantined wilderness that shouldn’t exist. The forest is changing. Spreading. Breathing. Time slips. Reality bends. And beyond the fence they are ordered never to cross, someone is calling to them. A woman tied to both of their pasts—a woman who should be dead.

As the pull of the forest tightens, so does the infection taking root beneath the trees. What waits inside isn’t just survival horror, it’s something far more intimate.

Because this forest doesn’t just infect the body. It gets inside you. Learns you. Remakes you.

And by the time Daniela and Cade understand what’s happening to them…it may already be too late to escape it.

Review:

From the start, this story had all the eerie X-Files vibes, and that made me a very happy reader.

There’s something contained in the forest along the US-Canadian border that no one wants to talk about, even to the investigators sent there to monitor the situation. There’s a government cover-up. And there’s an overall creepy element to the story that goes beyond the secrecy and the setting.

Both main characters experience strange time-shifts throughout the story. Sometimes it feels like one of them had a vision of the future and snapped back to the present, while other times it seemed like they lost hours or days to…something. Neither can explain what’s happening, but they know it’s related to whatever lurks behind the containment fence, and that it’s also tied to their individual pasts. They both need answers.

The creepy factor was present at the beginning of the story, but it continued to build up until the very end. I thought the suspense was really well done. I did find some parts were a bit predictable for my tastes, but otherwise, this was a great read.

If you’re looking for something unsettling to add to your October TBR, I recommend Don’t Let It Out. It’s a quick read (novella-length), and it might just make you think twice about hiking into the woods…

Filed Under: Fear For All, Reviews, Supernatural Tagged With: Book Review, Horror, Self Published

About A.J. Calvin

I'm a fantasy author and an avid reader of all things sci-fi/fantasy/horror. When I'm not immersed in something literary, I like to hike, scuba dive, and play video games. You can learn more about my writing at ajcalvin.net.

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