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Crawlspace

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Enter an edge-of-your-seat nightmare to the darkest frontiers in Crawlspace , an SF horror novel from New York Times bestselling author Adam Christopher, perfect for fans of S.A. Barnes and Event Horizon .

Mission Lead Olivia O’Connor and her team from the Artemis Corporation, along with their military liaison, are in the final preparations for a undertaking that will alter the course of human the first faster than light test flight that finally opening up the expanse of the universe.

But their journey between dimensions is one they never trained for. Strange voices in the corridors. Long lost faces not forgotten. Strange symbols carved into the hull. And gathering outside the ship, ancient forces beyond reckoning.

The crew will need all their skills to survive and uncover the twisted truth behind their mission.

Commencing countdown...

240 pages, Paperback

First published March 17, 2026

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About the author

Adam Christopher

49 books729 followers
Adam Christopher is the New York Times bestselling author of Star Wars: Shadow of the Sith and Master of Evil,  Stranger Things: Darkness on the Edge of Town. He has also written official tie-in novels for the hit CBS television show Elementary and the award-winning Dishonored video game franchise.

Co-creator of the twenty-first-century incarnation of Archie Comics superhero The Shield, Adam has also written for the universes of Doctor Who and World of Warcraft, and is a contributor to the internationally bestselling Star Wars: From a Certain Point of View anniversary anthology series and the all-ages Star Wars Adventures comic.

Adam’s original novels include Made to Kill and The Burning Dark, among many others, and his debut novel Empire State was both a SciFi Now and Financial Times book of the year.

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5 stars
25 (7%)
4 stars
71 (20%)
3 stars
155 (43%)
2 stars
82 (23%)
1 star
21 (5%)
Displaying 1 - 30 of 172 reviews
Profile Image for Rachel (TheShadesofOrange).
2,969 reviews5,105 followers
March 22, 2026
2.0 Stars
This is yet another disappointing attempt at science fiction horror. The story started with some decent tension but failed to actually deliver any actual horror. I don't why this subgenre is so hard to get right but these half hearted attempts keep disappointing me.

Disclaimer I received a copy of this book from the publisher.
Profile Image for OutlawPoet.
1,898 reviews68 followers
Read
March 4, 2026
This was, unfortunately, a DNF for me.

I found the pacing slow and the characters unremarkable. Eventually, I realized I simply wasn't enjoying the read and stopped.
Profile Image for Bethany (Beautifully Bookish Bethany).
2,897 reviews4,729 followers
Read
February 28, 2026
Survival horror in space! Crawlspace follows a crew on an experimental spaceship who become stranded on a mission and weird things start to happen. Dark forces gather outside and things are not all as they seem. This was fun and a quick read so I don't want to spoil things, but I think it will be enjoyable for sci-fi readers who want something a bit spookier. The audio narration is good but also fits the hard sci-fi vibe in terms of style. I would recommend this more to people who are sci-fi readers looking for a bit of horror than I would to horror readers looking for a bit of science fiction. I received a copy of this book review via NetGalley, all opinions are my own.
Profile Image for Kelli W.
646 reviews181 followers
April 10, 2026
2.5 rounded. Not creative conclusion
Profile Image for donna backshall.
842 reviews239 followers
April 1, 2026
I almost stopped this audiobook within the first three chapters, because the narrator (Jennifer Pickens) and I were not vibing. She was saying "daa-tuh" when I wanted to hear "day-tuh"", which wouldn't have been a problem if the word hadn't appeared in nearly every sentence during the setup chapters in this horror story.

But I kept going, because the idea of a claustrophobic space horror story compels me. I'm so glad I stuck it out, because once we hit Chapter 4, Pickens started flipflopping between "daa-tuh" and "day-tuh", and by the time we were in Chapter 6, we were solidly in "day-tuh" territory. Great, now I can settle in and concentrate on the story, not the mispronunciations.

This is my first time reading Adam Christopher, and I enjoy his writing style. The action and desperation of the crew felt real, and the unsettled feeling of the betrayal (but by whom?) propelled me faster through the novel. I could see this becoming a movie and feeling glued to my seat as I watch everything play out. How do we make this happen?
Profile Image for Laura.
342 reviews88 followers
February 24, 2026
Big bummer on this one. The cover and synopsis promised cosmic, ancient, claustrophobic horror, but the story never really delivered on that vibe. Nothing genuinely scary happens until the last ten percent, which is way too late to save it.

Instead, it felt like average characters trapped on a failing ship in space, running out of time. Wash, rinse, repeat of something we’ve all seen a thousand times before.

The writing itself wasn’t bad, and there’s definitely potential there. I’d still give the author another chance, but this one just didn’t blast off for me.
Profile Image for Kenneth McKinley.
Author 2 books304 followers
March 31, 2026
Crawlspace is a rough one to get through. What appeared to be an Alien-like horror romp ended up being an outer space snooze-fest. The pacing was that of a snail on a glue board. The action was few and far between. When something did happen, it really didn’t grab you. The writing, while not horrible, was this homogenized endless stream of tech speak that would bore even the most dorky engineers. Just a very boring read.

1.5 Broken HyperDrives out of 5
Profile Image for ♡Heather✩Brown♡.
1,173 reviews83 followers
March 15, 2026
ARC✶REVIEW
#ad much love for my advance copy @tornightfire #partner
& @macmillan.audio #partner for the ALC

🅲🆁🅰🆆🅻🆂🅿🅰🅲🅴
< @
ʀᴇʟᴇᴀꜱᴇꜱ: ᴍᴀʀᴄʜ 𝟣𝟩, 𝟤𝟢𝟤𝟨
horror | sci-fi | fantasy

𝙺𝚗𝚘𝚌𝚔-𝚔𝚗𝚘𝚌𝚔-𝚔𝚗𝚘𝚌𝚔…

When a mission goes all the way wrong, the astronauts aboard XK72 find themselves stuck and running out of time. But it might have been one of their own who put them here. And there’s more to worry about than the time running out, because something is out there knocking.

🎧: Also followed along with the audio and def recommend the audio. Jennifer Pickens did fantastic with this audio - bringing the plot alive before our ears. She captures the suspense and tension so well. Fabulous listen. I prob would have DNF had I not also had the audio.

Reading this one really did feel like reading a SA Barnes book. And boy, did I enjoy it. At first. It’s claustrophobic with characters you may, or may not, fully trust.

They’re seeing people who aren’t there and don’t trust themselves or each other. It’s a pressure cooker of a book. I knew as soon as I saw this book that I had to read it.

But then it all slowly fell apart 😭 - I did like it but it was far from perfect. But I was more disappointed so 3.5.

LMAO SOMEONE’s 5 star review saying it’s about a family and finding a Crawlspace in their home ☠️ tell us you didn’t read the book, without telling us.
Profile Image for Erica.
445 reviews12 followers
Review of advance copy received from Netgalley
January 13, 2026
As a big fan of sci-fi horror, I jumped at the chance to read this book. The cover is super creepy and the synopsis made it sound like I was in for something like Event Horizon or Alien.

Unfortunately the book let me down on a few counts. From a pure reading standpoint, the actual formatting of the book is not good - the margins are so wide that it makes reading the ebook nearly impossible and there are goofy, fruitless chapter titles that are highly unnecessary.

The actual plot of the book is... Fine... I guess. There is really no fear or horror elements until perhaps the last 25 pages. Most of the book is made up of techno jargon that goes on for pages interspersed with quirky characters. If you like techno jargon scifi with characters stuck in weird situations, you might like this. However, marketing it as a horror book I feel is very deceiving and instead I found my eyes glazing over the mumbo jumbo of characters trying to fix a spaceship for 200 pages.

Thank you to NetGalley for lending me a copy for review purposes.
Profile Image for The Void Reader.
468 reviews10 followers
March 24, 2026
Crawlspace by Adam Christopher — 4/5 ⭐️

A slow-burn descent that erupts into a finale absolutely worth the ride.

Christopher plays the long game here, threading unease through every corridor of the Artemis Corporation’s ambitious dimensional test flight. The early chapters simmer with mystery—strange voices, impossible symbols, and the creeping sense that the ship itself is watching. But it’s the final act where the book truly ignites. The tension snaps, the revelations hit hard, and the story barrels into an ending that rewards every breadcrumb along the way.

Once the pieces lock into place, the payoff is big, weird, and wonderfully unsettling.

Overview

Mission Lead Olivia O’Connor and her Artemis Corp team are preparing for a mission meant to reshape humanity’s future. But their leap between dimensions delivers them into something far stranger than science ever promised.

• Voices whisper from empty rooms
• Familiar faces appear where they shouldn’t
• Symbols etch themselves into the hull
• And outside the ship, something ancient waits


To survive, the crew must confront forces beyond comprehension—and the truth behind their mission, twisted and buried deep.

Countdown complete. The void answers.

Happy reading from the Void 🚀🪐📚
Profile Image for Steffany .O (coffee over apples).
224 reviews57 followers
March 29, 2026
thank you Tor nightfire for a gifted copy in exchange for an honest review.

I totally see the inspiration from event horizon. I read a lot of scifi horror. it's been a while since I read something that felt like a popcorn horror. I was able to follow along pretty easily and can totally see this being a mini series. It felt like it was written for the screen.

Liv, Deacon, Mirai, Astrid, Avery and Redway are on a test run for a new system of transport in space that may have flung them to the edge of the universe or another dimension. They can't get into contact with HQ, one of them goes missing and weird sounds go bump in the eternal night. I am a sucker for monsters so haha I'm always gonna love that.

There is a bit of info dumping happening so that brought those sections down for me. I was interested in the suspense and mystery of it all. If you are the kind of hard scifi reader that needs answers, you get some but not all. I'm ok with ambiguity so the ending was fun for me. The stakes were high the entire time.
Profile Image for Shannon  Miz.
1,555 reviews1,078 followers
March 24, 2026
So, the premise is so cool for Crawlspace: basically, this crew ends up caught in... I don't even know, non-space? They're stuck in literally nowhere, no light, no means of escape. And some kind of space entity is messing with them, too. Sounds exciting! I do love me a space horror, so I was immediately intrigued. The story started off a little rough, because there was a lot of tech-related info-dumping at the start, which made it feel very dense. But I went with it, because I really wanted to know what happened to this ship!

That's the rub- I needed to know what happened. So I kept reading, despite the fact that I felt a bit underwhelmed. The characters were incredibly flat, and I felt like we knew nothing about them, though I held out hope that we might learn a bit more about them as the story progressed and they had to handle whatever this situation threw at them (reader, we did not). Liv was the main character, but the only thing I knew about her was that she was a pilot. That is literally it. The others were also just definitions of their roles on the ship, and one girl had a dead sister. This is the only personal fact we know about any of them. Family? Friends? Lovers? Your guess is as good as mine.

Yet I still wanted to know what was going on! So, I kept on keeping on. The vibes were pretty good, I will give it that- you could tell that it was a messed up situation, and that things were desperate and scary. But because I did not know a blessed thing about any of the characters, it was really hard to care what happened to them. Like okay that one dude is gone? Bummer I guess. Oh is he back? Fine enough, okay. It just didn't matter, because there was no emotional connection between the characters at all.

Then toward the end, things just got even more unhinged, and I dare say a little... silly? I think it was supposed to be a bigger deal, but I didn't love it.

Bottom Line: I'll give it two stars for the vibes, and the fact that despite everything, I still wanted to know how it ended.

You can find the full review and all the fancy and/or randomness that accompanies it at It Starts at Midnight
Profile Image for Vi.
161 reviews12 followers
Did Not Finish
March 27, 2026
Dnf. It started out strong, but ended up with a very slow pacing. I just couldn’t enjoy it.

Thank you for the advance copy.
Profile Image for Kirk.
468 reviews15 followers
March 16, 2026
Jennifer Pickens, the audiobook narrator, is the MVP of Crawlspace by Adam Christopher. Without her excellent narration, this might have been a DNF for me. What I thought were the most interesting parts of the plot were overlooked and more boring elements brought to the forefront. Unless this is supposed to be book one of a series or duology, it was very rude for the ending to be presented in the way it is, abruptly. ALC was provided by Macmillan Audio via NetGalley. I received an audiobook listening copy for free and I am leaving this review voluntarily.
Profile Image for StoryModeLarissa.
25 reviews10 followers
November 9, 2025
I got this ARC at New York Comic Con a few weeks ago and I’m so glad that I did. I couldn’t put it down, the end of each chapter made me want to continue on to the next. A+ Space horror!

My only criticism is that the chapter titles were completely unnecessary and cheesy, it almost ruined the suspenseful vibe the book was trying to covey. The titles were all quotes from within the chapter and it did nothing but make me cringe, once when seeing the title and then again when I came across it in the chapter. It was a constant “oh look they said the thing” moment in my head, taking me out of the story for a bit. Remove the chapter titles entirely before release and I’d say this is a 5 star!
This entire review has been hidden because of spoilers.
Profile Image for Faye Anne.
830 reviews22 followers
May 11, 2026
Crawlspace is a sci-fi horror standalone by Adam Christopher. It's heavy on the sci-fi, with a tense, creeping dread that has you questioning what's real and what isn't. I love sci-fi, but I'll be totally honest and say that a lot of the hard science goes over my head - I'm here for the overall entertainment, not to judge how accurate the science is! I leave that to my physicist husband when he reads the books after I do.

So, while I can't speak for the science, I definitely felt the impact of the psychological horror. I think if you go into this expecting action and gore, Crawlspace could be a disappointment, because it's not that kind of horror. It's more of an atmospheric, claustrophobic, psychological horror. The crew are stuck in space in a non-functioning ship and at least one crewmember is missing. While trying to get the ship operational again, the remaining crew start to see things. So if that sounds like your kind of horror, check Crawlspace out!
Profile Image for Casey Bee.
802 reviews66 followers
February 24, 2026
I picked up this ARC at New York Comic Con, where I got to meet the author and get my copy signed! Adam Christopher is such a nice guy and literally so cool, writing for franchises from Star Wars, to Warcraft, to Doctor Who!

This is a quick but highly entertaining cosmic horror! It involves a crew on an experimental vessel trapped in a starless void. The magic is in the mounting dread and tension. The whole time I just wanted to know what the heck was going on! There was one line earlier on that had me HOOKED, and that was “Do you want in?”. Ahhh, in on what?!? It drove me crazy, I had to know what was going on. Ultimately, the concept presented in this book was absolutely a fascinating thought. As I often find with sci-fi, I know it isn’t real, but I feel like it could be. The reality of the character’s situation would be absolutely terrifying, but reading about it sure was fun!

Thank you to Tor Nightfire and the Tor booth at NYCC for the ARC! Book releases 3/17/26.
Profile Image for Aiden.
273 reviews5 followers
Did Not Finish
March 23, 2026
DNF @ 39%. This is laughably horrible. Truly. The characters have as much depth as a sheet of paper. The amount of cliche dialogue that comes out of their mouths is downright hilarious. The author has written so many books in already-established franchises that it seems he has no experience creating characters from scratch. Plot points and conflicts are continually restated multiple times in each chapter, which damages the pacing. The whole plot could probably be completed in under 100 pages, but it seems that Christopher had a word count to hit. Such a shame too because the premise has so much potential to it.
Profile Image for Kate | Date With A Thriller.
678 reviews43 followers
March 8, 2026
One of my favorite horror subgenres is sci-fi horror and this one did not disappoint!! 🙌

Definitely a bit of a slow burn, but I loved the creepy feeling that built up as the book progressed! I did get a bit of Event Horizon vibes but almost a bit of Virus vibes! Which now I want to watch that movie as it’s been a while..and yes, I know that it’s not set in space, but.. 😂 ANYWAYS, be sure to check this one out if you love sci-fi horror like I do! 👏

Thank you Tor Nightfire and NetGalley for the opportunity to read the eARC in exchange for my honest review! ❤️
Profile Image for Lauren.
206 reviews1 follower
June 17, 2026
This had a great premise and built up suspense so well…and then fizzled out with technology explanations that nearly had me DNF-ing. Don’t give me a creepy tentacle creature on the cover to have it show up once with no explanation meanwhile I’ve had to learn how ion converters work. I’m sad because the beginning was good!
Profile Image for James.
13 reviews1 follower
Review of advance copy received from Netgalley
February 2, 2026
"Crawlspace" by Adam Christopher is a solid, quick read in the realm of cosmic horror. It excels at building an oppressive sense of dread and danger throughout the pages, and presents a dark scenario involving astronauts on an experimental vessel trapped in a starless void.

There are a few truly standout scenes in this book, and a lot of tension. The mystery remains engaging, even if fans of the genre will find many familiar elements.

Unfortunately, while not completely flat, the characters remain largely one note. And the horror, while present, never really takes off quite the way I was hoping it would, instead remaining at a moderate simmer for most of the book.

Still, it's worth checking out for fans of the genre, as there is a lot to like here. I'll give it ⭐️⭐️⭐️💫.

Special thanks to Tor Nightfire and NetGalley for the advanced copy for review!
Profile Image for James.
1,275 reviews43 followers
March 29, 2026
An experimental spacecraft on its initial mission does not go according to plan and the crew must figure out what went wrong and how to get home. A promising setup and mystery that unfortunately peters out into an unsatisfying resolution. Disappointing. Despite that, Jennifer Pickens does a great job on this audiobook.
Profile Image for Chris.
402 reviews1 follower
May 18, 2026
Another great and terrifying space horror.
Profile Image for Mary.
568 reviews3 followers
May 24, 2026
The majority of the ~horror problems in this book could have been headed off if people had, like, talked to each other. This was a short book, but it felt very long.
Profile Image for Bill Philibin.
925 reviews11 followers
April 16, 2026
(5.0 Stars)

This book was an absolute trip, and i mean that in the best possible way!

I loved everything about this book. Great story, great characters, action, tension, intrigue, and superb world-building.

It was just all-around good, gripping, and excellent speculative fiction. I also liked the narration of the audiobook.
Profile Image for Jenny Robertson.
21 reviews1 follower
June 15, 2026
2.75/5. I don’t like to give quarter ratings but this book isn’t either a 2.5 or a solid 3 for me. The story had the potential to be good. It started off interesting, but then it dragged on quite a bit. I was hoping for a more creepy atmosphere and unfortunately it didn’t deliver that.
Profile Image for Amy Richardson.
74 reviews57 followers
Did Not Finish
March 24, 2026
I made it to 20% before calling it. One of my highly anticipated books of the year, this was a real disappointment. I'm sure the horrors in the last quarter are likely excellent, but when the military pilot has a secret agenda and takes everyone hostage and I just don't *care* about any of them... That says something for me. But I can't be scared for characters if I don't know who they are.
This entire review has been hidden because of spoilers.
Profile Image for Ms. Nedy Librarian.
29 reviews1 follower
April 14, 2026
If you like hard sci-fi with a huge dose of dread, Crawlspace is for you. Following a stranded crew, this quick, spooky read is full of twists. It’s definitely more for sci-fi readers who want a horror edge.
Thank you Goodreads for the giveaway!
Profile Image for Rachel Martin.
528 reviews
December 7, 2025
I genuinely had a fantastic time reading Crawlspace; a lot of creepy, thrilling, eerie scenes that had a cinematic quality. Like...I was fully absorbed and read it in 2 sittings.

While it was the book that got me out of my slump, the storyline had a few moments where I thought, "I've read this before". As with any book set in a spaceship(Is that the proper terminology? lol), at least for me, there are some space-y terms that I had to remind myself what they meant.

Those that enjoyed S.A. Barnes or The Scourge Between Stars by Ness Brown (totally underrated Nightfire release). Also kind of reminded me of Sarah Gailey's Spread Me a bit.
Displaying 1 - 30 of 172 reviews