This was a book with a brilliant cover, some amazing and well-written characters, a very interesting premise and intro, a middle part that felt like 98% of the book, and an undeniably climactic ending. It also has Doyle Gridliner in it, the greatest character - or at the very least the greatest name for a character - since Jay Beerman. You probably don't remember Jay Beerman. Your loss. Anyway Doyle is great, but I'm getting ahead of myself.
Sachi Inside (everyone in the space-Morlock underclass who live in the space station plumbing are surnamed Inside) and her brother Hochi are attempting to break quarantine and escape the deadly planet-killer Hibravian virus. Yes, this is a covid-era book and it definitely shows - but the Hibravian seems a little more dangerous. About as well contained though. Also the universe is unravelling at the edges, but that's an unrelated thing. Mostly. Like I said, 98% of this story is people in hermetically sealed spaceships figuring out new and exciting ways to infect each other with a deadly virus.
Sachi escapes from her doomed home of Kerberos space station and stows away on board (or actually on the hull of) the Jacks, with the help of Botan. Botan is a strange alien plant symbiote that covers her like an invincible exoskeleton and allows her to - among other things - sit on the hull of a spaceship and survive the Hibravian virus. When she's discovered by the ragtag crew of the Jacks, the ship's medic (generalist) Liam studies her and her miraculous symbiote while the whole lot are hunted by some shady government / military types. The Eastern Star Corporation, the Azure Peace Colony and the Elysium Empire are just three of the big players out to get themselves a slice of the Aetherus tomentosa M pie (that's the symbiote, Botan). Through it all, Captain Karasi Kwei is just trying to keep herself flying by pure expenditure of Reynoldsian energy (Mal, Alastair, they're like volts and amps frankly), and Doyle Gridliner is there to make money and get headaches because of his father's presence inside his head, and we might just unpack that a little bit later, yes indeed.
So yeah, I guess I have to admit that after an honestly amazing setup, there's something of a becalmed middle-part of the book that felt much longer than I'm sure it was. The crew of the Jacks try to treat the virus they went and caught, and there's some cat and mouse with the massive powerful agencies I mentioned, and a lot of dashing from place to place inside ships and trying to fix things or break things or get away or whatever else, and it was all a bit too involved and unnecessary. But I totally get it. Those complex action-and-tension scenes are good chewy meat to add to any narrative, and the series of set-pieces were all interesting, mainly because of the characters. They were very good. But yeah, I don't know, they could have had a few different encounters and battles, and the ones already in the story could have been tightened up.
I did enjoy the occasional jumps to settings like Sheol, where the imperatrix (made of pomegranates?) and Sammael (covered in beetles?) have their whole evil alien thing going on. And yes, I think I did already mention that while all this is going on, the universe is contracting in a reverse Big Bang, the encroaching walls of antimatter nothingness taking out every survey ship to examine it, ushering in the birth of the afterworld, and creating a housing crisis as the mega-rich move to gated community planets a long way from the disaster. So yes, this is a covid-era book, but it is also a book very much aware that covid is a very tiny problem compared to the ongoing climate collapse. I may be reading into it a bit, but I don't think it's much of a stretch.
You know what else I enjoyed? This story, while it didn't have much in the way of infodumps itself, did have literal info-dumps as a media form. What a perfect and brilliant way to codify and lampshade infodumping. If only they had been used more!
The middle part of the story winds up at a very cool ending point which I won't spoil, but it was a respectable mind-blower. Let's pivot to the meters and see what they have for us.
Sex-o-meter
Everyone was a bit busy to get it on in this one, and that's understandable. One face gets licked, the occasional facial orifice gets stuffed and a bunch of unsafe needle-action goes on, but none of it is remotely sexy. I'll give it an Eddie Izzard beekeeper out of a possible Million Ants in terms of sexiness. Not that Eddie isn't sexy. Just, I don't know.
...
*whacks sex-o-meter discreetly and checks again*
Nope, nothing. We're not even unpacking Doyle Gridliner's daddy issues, apparently. Wow. Way to phone it in, sex-o-meter.
Gore-o-meter
Solid action and violence makes this an easy page-turner but it never gets so extreme as to be hard to read. There's assorted shootings and dismemberments and so on, some nasty viral stuff, and even if most of the violence happens to a character encased in an invincible symbiote, it's pretty relentless. The worst violence in my opinion is emotional trauma involving the Azure Peace Colony cult, very glad that got the closure it did. All in all it's not a super gory tale though, I guess I have to say. Two flesh-gobbets out of a possible five.
WTF-o-meter
The Aetherus tomentosa M is made of almost weapons-grade WTF, and I'm here for it. The use of 'vacuum' as a swear / slur was funny. Liam's decision to just straight up inject Sachi's blood into everyone as a treatment for a virus is ... well that's certainly a thing that happens in the story and I'm not going to argue with it. The alien forces were impressively alien, and seen just enough to remain interesting without getting over-exposed. The WTF-o-meter is giving Insiders a giant squid out of a possible Ants In My Eyes Johnson, which I think is because I whacked it a couple of minutes ago and it got stuck on comparative Eddie Izzard / Rick & Morty references. Sorry.
My Final Verdict
Insiders was a well-written and enjoyable space opera with well-defined characters, mega-cool side-protagonists and an outstanding premise, with a nice hint of über-weird to add scale and stakes. Three stars on the Amazon / Goodreads scale, I'd happily read more in the Aetheroverse - preferably with a couple fewer interchangeable INT. SHIP CORRIDOR. NIGHT (BECAUSE IT'S SPACE). scenes.