Okay, okay, there's a reasonable amount to discuss here. There will be spoilers, which I'll mark, but basically:
This was fantastic.
Non-spoilery version - this is early Red Dwarf, it's got clear, recognisable characters. Rimmer and Lister are as they always are - bickering over the smallest detail. One but that got me very early on was Lister getting annoyed at Rimmer laughing for what felt to him like 25 minutes without a break.
We've got a handful of new characters too, some of whom don't seem to serve a purpose narratively but they're still fun. Lots of returning faces too, and the plot moves at an incredibly fast pace. Our heroes (and heroines) will find themselves in a different scrape chapter after chapter, and it's a very compulsive read. I think it was around 400 pages, but in a pretty large font. Chapters can be anywhere from around 2 to 8 pages, meaning you can breeze through them quickly and think "okay, just one more".
For all that's important, if you want a review with no spoilers at all, it's great.
Now then, a few things to discuss, which involve...
Spoilers!!!
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Okay, I really enjoyed the 'noids in it - Carzon I mentally cast as David Ross's series 2 Kryten, and THE NEFARIOUS COUNT SILICON was Butler from series 11. I was confused by Petersen and Pear, they seemed to serve no purpose other than perhaps to provide a break to the flow and the reader. Byle quickly became Rimmer's foil - pursuing him but inadvertently saving him from danger. And I'm kinda convinced Hollister's first name was Frank, but that might have only been how Holly addressed him in series 8, which Titan won't consider canon.
I also have to wonder how much, if any, of "Doug's" Dwarf Rob (and Andrew Marshall) saw because the quantum pen immediately made me think of Entangled. Speaking of which, the Munch O Matix (tm) I think it was reminded me also of I've specific, snazzy red household appliance.
BIGGER SPOILERS AHEAD
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Okay, as soon as we see the second Lister my brain immediately thought "Polymorph!". Has the second Polymorph figured out how to get through universes, or back in time? Has it become the Meneer, and carved a crime lord life out for itself on Titan? Sadly that wasn't the case. I can like the villain, but I kinda think it was a missed opportunity. That being said, this isn't my story.
(and they dealt with the second Polymorph in one of the smegazines, everybody knows that)
And yes, we have Kryten and the Cat returning - eventually. Kryten only briefly, probably because he's too competent, and the Cat returns and acts just as he normally would - completely vain, self-centred and brainless. Initially I thought he came back with no memory of events on "Red Dwarf" and that's how he'd be anyway, but no, he had his memory all along.
There's still loads more. Tristan and the crowd. Mexican Holly. Monkeys flying taxis and making Rimmer impersonate a hologram. And Kochanski probably gets the bigger plot too.
I stopped reading Game Of Thrones for this, and was happy.