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Bobiverse #6

The Infinite Extent

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Audible listeners agree! The “Bobiverse” series is “smart, funny and addictive,” “a love story to science fiction” and “my favorite series ever.”

BOBIVERSE TO-DO

· Determine who built a vast wormhole network–and why

· Investigate mysterious, derelict alien spaceship

· Crack faster-than-light travel

· Help tens of thousands of refugees find a new planet

· Confront a new threat from an old enemy

· Figure out how to save the known universe from certain destruction

So many crises, so little time. It’s really not easy being a Bob.

Listen to The Infinite Extent and you’ll see why fans demand “MORE BOBs PLEASE!” and exclaim, “With Ray Porter narrating, this surge drive is firing on all cylinders.”

8 pages, Audible Audio

Published September 10, 2026

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About the author

Dennis E. Taylor

19 books10.6k followers
I am a retired computer programmer, an enthusiastic snowboarder, and an inveterate science fiction reader.

And, apparently, an author now. Did not see that coming.

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Community Reviews

5 stars
161 (52%)
4 stars
104 (33%)
3 stars
37 (12%)
2 stars
3 (<1%)
1 star
2 (<1%)
Displaying 1 - 29 of 29 reviews
Profile Image for Mikes Bookstagram.
58 reviews9 followers
September 13, 2026
I may be bias because this series was one that brought me back into reading so it will always hold a special place in my heart, but it was more of what I love! The science, the scheming, the wonders of the universe, it had it all!
Profile Image for A.
9 reviews4 followers
September 10, 2026
All the Bob goodness I love, but how dare he end the book that way! Now I have to start waiting....yet again
Profile Image for Stephen Richter.
962 reviews42 followers
September 12, 2026
I have yet to be disappointed in a single Dennis E. Taylor book and the latest addition to the Bobiverse series is no exception. An old foe resurfaces and things look bleak. Toth, the rogue AI is sending spam messages to OG Bob. What's not to like? There are, as always, plenty of nerd culture asides sprinkled throughout the tale. My favorite was cloning Philip José Farmer and making him live a world he created in a novel. Great stuff.
Profile Image for davidgonzalezsr .
450 reviews4 followers
September 11, 2026
My Slightly Sarcastic But Ultimately Honest Book Rating System:

⭐️⭐️⭐️⭐️⭐️ (5 Stars): This book achieved legendary status in my personal library. I will likely reread it until the pages fall out (or my e-reader spontaneously combusts). Consider this my enthusiastic endorsement – you should probably read it unless you actively dislike joy.
⭐️⭐️⭐️⭐️ (4 Stars): A truly excellent read! I enjoyed it immensely and would heartily recommend it to fellow bookworms. You might even catch me subtly pushing it into their hands.
⭐️⭐️⭐️ (3 Stars): Yep, it was a book I read. I turned the pages, absorbed the words, and emerged...unchanged. It was a pleasant enough journey, like a scenic detour that you wouldn't necessarily take again, but didn't regret.
⭐️⭐️ (2 Stars): This book existed. I finished it. That's about the highest praise I can offer. If you're looking for something truly captivating, maybe keep scrolling. This one's more of an "it filled the silence" kind of experience.
⭐️ (1 Star): Oh dear. This book and I did not get along. It was a literary tumbleweed in the vast desert of good books. Consider this a strong "do not recommend," unless you're conducting research on what not to do in storytelling.

Disclaimer: My enjoyment of the narrator is based on my listening speed. I only leave 5 stars for books I've read/listened to or will read/listen to multiple times. If you like this review please consider giving it a Helpful Vote below.
Profile Image for Oliver Kerridge.
107 reviews
September 10, 2026
Happy to get a new installment in this series, would probably give a 4.5, but I enjoyed the new characters added and how the plotlines are developing. To be vague about it
Profile Image for Jacob P.
284 reviews1 follower
September 14, 2026
3.5/5

I came into The Infinite Extent after a bit of a break from the Bobiverse books, mainly because the previous book came out a little while ago. Thankfully, I had a refresher of everything that had happened beforehand because there are so many different plot threads, Bobs, planets, species and ongoing problems at this point that jumping straight back in would have been rough.

Overall, I enjoyed it. I still really like the Bobiverse universe, and one of the coolest parts of the series continues to be seeing how far the different Bobs have diverged from the original. They all have their own quirks and personalities now, and that concept is still pretty sick.

That said, I think this might be one of the weaker entries in the series for me, mostly because... not heaps actually happens.

There are definitely some big developments. Bill and the others figure out FTL and manage to push it to ridiculous speeds, opening up massive new possibilities for the universe. Daedalus and Icarus continue exploring the wormhole network and uncover more information about the Progenitors and the origins of the wormholes. The Brazilian replicant returns and creates another conflict around rebuilding Brazil and establishing the Brazilian Empire, which eventually gets resolved through a combination of a small war and basically out-logicking his own directives.

All of that stuff is interesting. The problem is that a lot of it feels like setup.

The biggest example is the ending. The Bobs eventually encounter a Progenitor through a wormhole and they get hacked in the middle of the Milky Way. That's an absolutely sick premise and a great setup for what comes next... but it took around eight hours to get there.

I think that's where this book differs from the earlier Bobiverse books for me. The first few books had more grounded, immediate problems. The Bobs would arrive somewhere, interact with a civilisation or community, and you would get invested in the politics, infighting and relationships while watching that particular Bob navigate the situation.

This book feels much bigger in scale. The problems are cosmic rather than personal. We're dealing with FTL, wormhole networks, ancient civilisations and galaxy-level consequences. That's cool, but I think something gets lost when everything becomes so huge. There isn't really one major problem that needs to be solved right now. Instead, it feels like a lot of experimentation, discoveries and groundwork being laid for the final book.

There's also some internal Bob politics and the introduction of Bobby, a gender-swapped Bob. I didn't particularly love or hate that addition. With how much the Bobs have diverged, it was probably inevitable that something like that would eventually happen. It didn't bother me, but it also didn't really add much to the story for me personally. It may lead somewhere later, but in this book it felt more like another plot point than something with a major payoff.

The other thing worth mentioning is that this is probably one of the more science-heavy books in the series. The earlier books felt more grounded, whereas this one really starts stretching into some much bigger and more complicated sci-fi concepts. That's completely fine, and obviously part of what the series is, but there were definitely moments where the explanations went beyond what I could fully follow as a layperson and I found myself zoning out a little.

I still enjoyed the ride, though. The Bobiverse remains a really fun universe to spend time in, the different Bobs are still entertaining, and the ideas are genuinely interesting. I just don't think this book stands particularly well on its own compared to some of the earlier entries.

At this point, the first three books are still probably my favourites. The premise felt simpler, the problems felt more immediate, and the stories had more contained adventures with satisfying resolutions. The Infinite Extent feels like the series has moved into its endgame, where everything is bigger, stranger and more cosmic.

I'll absolutely be back for the next one, especially if it really is going to be the final book in the series. This ending has set up something genuinely exciting, and I really hope the series sticks the landing.

A good book and a nice, relatively short listen, but ultimately one that felt more like a bridge to the finale than a story with enough happening to fully stand on its own.
Profile Image for Lisa.
257 reviews2 followers
September 14, 2026
⭐⭐⭐⭐⭐

Another standard Bobiverse book, and honestly, I really enjoyed it. After waiting so bloody long for another one, it was great to be back with the Bobs, the humour, the ridiculous situations and all the usual sci-fi goodness. It felt like a Bobiverse book, and by the end I was happy I’d read it.

BUT… I have to mention the one thing that really pissed me off.

The whole storyline with the Bob who was a version of his sister and had transitioned into a woman just felt completely unnecessary to me. None of the previous five books had gone down this road, and it felt very much like something that had suddenly been shoehorned into this one. It pulled me right out of the story and honestly had me sitting there thinking, “Oh FFS, really?” 🙄

I’m not saying the book is bad because of it — clearly it isn't, because I’m still giving it 5 stars and I still really enjoyed the hell out of it. I just don’t understand why Taylor felt the need to introduce this particular storyline into a series that had managed perfectly well for five books without it.

Not every story needs to include every current social issue or representation just because it exists in the real world. Sometimes I just want to read bloody science fiction and follow the story without feeling like the author has decided they need to tick another box. 😂

Anyway… rant over.

Despite that, I still loved the book. Classic Bobiverse, classic Dennis E. Taylor, and I’m absolutely up for another one because that ending definitely left the door open for more.

5 stars — with one very large eye-roll. 🙄🚀
4 reviews
September 12, 2026
As much as I love this series, and it really is like a cosy cup of coffee, I have to admit that this entry has some pretty major issues that hold it back.

Pacing is a big problem. Just as one thread builds momentum we jump to another one. By the end of the book the sense is that little progress has been made. This is compounded by the lack of a compelling overall plot.

A serious lack of tension. I never once felt any even kernel of concern for the Bobs. Medeiros is no challenge for them, and the other sources of potential plot momentum (e.g., the black hole Nemesis) are far off threats that pose no immediate challenge. Bib desperately needs bigger challenges that are actual threats.

Misallocated plot energy. I think bringing back Medeiros was a big error - Bob learns nothing from it and we’ve faced it several times before. We should have instead for example had loads more Thoth.

I’m also getting annoyed that production bottlenecks are still a plot point - the Bobiverse should have several orders of magnitude greater production capacity than 21st century Earth.


So while I really enjoyed reading it and I will always love the Bobiverse, there are some pretty obvious ways it could be a better story.
This entire review has been hidden because of spoilers.
Profile Image for Anne.
3,167 reviews35 followers
September 12, 2026
It only gets 4 stars because of the narrator (Ray Porter). The story itself....just more of the same, switching between so many characters, it's hard to keep track of who is who. And the crossover with Craig Alanson's Expeditionary Force series is accelerating, and just emphasizes how much better Expeditionary Force is. Why did the author decide to take his series into the other one? Didn't he have his own ideas and material to work with? Has his ability to carry his own series faded into such a sad state where he has to blatantly use the other author's work?

And once again, I'm annoyed that I didn't have the kindle book to go with the audio. Next time, I'll wait. And the only reason I'll even get it, is because of Ray Porter. But I like to have the ebook as well, it can help to keep track of the thousand thread quilt.
Profile Image for Emily.
80 reviews
September 11, 2026
I am so grateful I only had to wait a couple of weeks after finishing #5 before I was able to delve into this "final" installment. Fantastic, underrated series. Amazing how Taylor has managed to turn an entire society of technically the same person into something so fun and unique. Really hoping for some new stories in the same universe (sorry, Bobiverse!) while this tangent continues onwards! What a shame to have to wait again
203 reviews1 follower
September 13, 2026
It's the 6th book in a series, you either love it or you haven't stuck with it after the first book or two. Once book 4 hit and bigger things started happening you probably either stuck with it or bailed, if you bailed, you're not caring about this review which is just fine.

My largest complaint is the feel of endgame creep....just bigger surprises, larger things, and more characters but it happens and I'm here for it.
Profile Image for Dave Stone.
1,399 reviews106 followers
September 11, 2026
Like crack for nerds
True to form - New Ideas - The writing has rarely been better
Excellent pacing. There are no 'boring parts', only places where you catch you breath because it's less hectic.
Some of the previous Bobiverse books got a bit misanthropic in a "this is no fun anymore" kinda way, this one kept it's edge without having that aftertaste of bummer.
Profile Image for Riley Murray.
19 reviews2 followers
September 12, 2026
3.5⭐️

Solid entry for the series that continues some of the plot points that where set up in Before we are lost. This one feels like it should be longer then it is. And that’s a good thing to me. They answer a lot of questions, but leaves everything on a cliffhanger that won’t be felt with till the next book. Still enjoyable, but it feels like a half step before we get the next book.
Profile Image for Kelly.
2 reviews1 follower
September 11, 2026
This felt more like setup for the next book than a complete installment.

I enjoyed being back in the Bobiverse, but compared with the scope and world-building of earlier books, this one left me feeling like I’d only gotten the first half of the story.

And really, a cliff hanger?
Profile Image for Tony Hinde.
2,378 reviews100 followers
September 13, 2026
While this episode suffered fewer extended digressions, the overall feel is drifting from the original. What was once a deeply individual story is now a taster's plate of many POVs seemingly used as vehicles to explore cool Sci-Fi ideas. That's fine, but I pine for the good old days of Bob prime.
215 reviews3 followers
September 13, 2026
If I’m honest I was really disappointed by the ending. For all of the build up and effort put in to setting up the situation, 200 years of planning fell apart with minimum input. Don’t know if I’ll bother continuing the series after this
Profile Image for A.R.
456 reviews38 followers
September 13, 2026
Not as good as the last one. It explored the mysteries left, but not enough. The same key points repeat. Just…more of the same. The same is good, but was hoping for more after the reveals of the last book.
Profile Image for Owen Neochi.
33 reviews
September 12, 2026
Great continuation of the bobiverse series. Now I'm eagerly awaiting the next one...
25 reviews
September 13, 2026
Jumps around too much, and pretty short. Also they introduce a new character who magically saves the day, a bit forced and cliche.
7 reviews
September 13, 2026
Shorter than I wanted, but pretty good. Then to hit us with a cliffhanger! I guess i have to wait for the next book.
Profile Image for Tee.
438 reviews16 followers
September 13, 2026
Bob said trans rights 🤓🙏

I liked this a lot but am super sad it's so short. also what in the cliffhanger booooo
This entire review has been hidden because of spoilers.
Displaying 1 - 29 of 29 reviews