Caspar Geon
@caspargeon.bsky.social
Author of non-human space opera THE IMMEASURABLE HEAVEN, published by Solaris. Repped by Ed Wilson
Also known as that weirdo Tom Toner, author of the Amaranthine Spectrum
https://linktr.ee/caspargeon
Preorder: https://geni.us/immeasurable
Also known as that weirdo Tom Toner, author of the Amaranthine Spectrum
https://linktr.ee/caspargeon
Preorder: https://geni.us/immeasurable
Pinned
Caspar Geon
@caspargeon.bsky.social
· Feb 18
Greetings Bluesky! I’m Caspar, and my completely non-human space opera THE IMMEASURABLE HEAVEN is out July with Solaris.
I've published some fairly out-there SF under another name, but this was a very different animal that took 7 years off & on to write. Here’s a peek inside if you’re interested.
I've published some fairly out-there SF under another name, but this was a very different animal that took 7 years off & on to write. Here’s a peek inside if you’re interested.
Reposted by Caspar Geon
My first review for NoaF - Alien: Cult by @gavingsmith.bsky.social.
Book Review: Alien: Cult, by Gavin G Smith
The Alien: Earth series we should have got.
One of our new flock members, @stewarthotston.com , has our review at the blog:
www.nerds-feather.com/2025/11/book...
The Alien: Earth series we should have got.
One of our new flock members, @stewarthotston.com , has our review at the blog:
www.nerds-feather.com/2025/11/book...
Book Review: Alien: Cult, by Gavin G Smith
The Alien: Earth series we should have got. cover artist: Marco Turini and Julia Lloyd We've been spoilt with new Alien content in the la...
www.nerds-feather.com
November 25, 2025 at 10:36 AM
My first review for NoaF - Alien: Cult by @gavingsmith.bsky.social.
Tune in next week for another extremely extreme worldbuilding workshop with my tree-dwelling friends - who knows what’s going to happen? I don’t.
Ca-caw! We've another week off today as the Rooks take some time to roost in their nests, but we will be back next week with Caspar Geon (Tom Toner) and the third part of his Extreme Wildcard Worldbuilding Workshop (EWWW3 - the Hunt for EWWW).
@caspargeon.bsky.social
@caspargeon.bsky.social
November 23, 2025 at 10:28 AM
Tune in next week for another extremely extreme worldbuilding workshop with my tree-dwelling friends - who knows what’s going to happen? I don’t.
Reposted by Caspar Geon
Science fiction Sunday reading!
A look at @caspargeon.bsky.social 's latest novel, The immeasurable Heaven. It gets the thumbs up from me.
A look at @caspargeon.bsky.social 's latest novel, The immeasurable Heaven. It gets the thumbs up from me.
Conceiving the Alien
Caspar Geon (AKA Tom Toner)'s The Immeasurable Heaven set off ripples of interest with its promise of a 100% alien cast of characters. Some...
averypublicsociologist.blogspot.com
November 23, 2025 at 9:17 AM
Science fiction Sunday reading!
A look at @caspargeon.bsky.social 's latest novel, The immeasurable Heaven. It gets the thumbs up from me.
A look at @caspargeon.bsky.social 's latest novel, The immeasurable Heaven. It gets the thumbs up from me.
A very old and droopy male Epir - an intelligent species of dinosaur from my first SF trilogy, the Amaranthine Spectrum
November 23, 2025 at 9:45 AM
A very old and droopy male Epir - an intelligent species of dinosaur from my first SF trilogy, the Amaranthine Spectrum
Reposted by Caspar Geon
Oh LOOK, the judges have been announced for the inaugural Great Northern Read award for Northern writers with a prize of £2500 and mentoring by my agency Johnson and Alcock.
And WAIT, ONE OF THOSE JUDGES LOOKS FAMILAIR!
newwritingnorth.com/judges-annou...
And WAIT, ONE OF THOSE JUDGES LOOKS FAMILAIR!
newwritingnorth.com/judges-annou...
Judges announced for the inaugural Great Northern Read Award - New Writing North
RJ Barker, the critically acclaimed author of award-winning fantasy fiction including the Tide Child trilogy, The Wounded Kingdom trilogy and...
newwritingnorth.com
November 20, 2025 at 6:37 PM
Oh LOOK, the judges have been announced for the inaugural Great Northern Read award for Northern writers with a prize of £2500 and mentoring by my agency Johnson and Alcock.
And WAIT, ONE OF THOSE JUDGES LOOKS FAMILAIR!
newwritingnorth.com/judges-annou...
And WAIT, ONE OF THOSE JUDGES LOOKS FAMILAIR!
newwritingnorth.com/judges-annou...
Reskeet with a time you looked cool
November 20, 2025 at 11:55 PM
Reskeet with a time you looked cool
Realised that it’s 10 years to the day since my first book was published - a strange old tale set in the 147th century, featuring a giant (but very awkward) hominid protagonist. There’s a lot I’d do differently if I were writing it now, but I had such a great time coming up with so much weird stuff.
November 19, 2025 at 10:11 AM
Realised that it’s 10 years to the day since my first book was published - a strange old tale set in the 147th century, featuring a giant (but very awkward) hominid protagonist. There’s a lot I’d do differently if I were writing it now, but I had such a great time coming up with so much weird stuff.
Reposted by Caspar Geon
Terminator starts promisingly, being about two naked men on a quest for some trousers, but then goes off in a different direction that isn't as interesting.
November 16, 2025 at 11:45 AM
Terminator starts promisingly, being about two naked men on a quest for some trousers, but then goes off in a different direction that isn't as interesting.
An interesting thing I’ve found on my travels in Tasmania - the (thankfully) unoccupied shell of a Textile Cone, a beastie so venomous that it’s also known as the ‘cigarette snail’ (because once it’s stung you you’ve got just enough time to smoke a cigarette before you’re pushing up the daisies).
November 17, 2025 at 10:22 AM
An interesting thing I’ve found on my travels in Tasmania - the (thankfully) unoccupied shell of a Textile Cone, a beastie so venomous that it’s also known as the ‘cigarette snail’ (because once it’s stung you you’ve got just enough time to smoke a cigarette before you’re pushing up the daisies).
Reposted by Caspar Geon
The race for reality has begun in @caspargeon.bsky.social's THE IMMEASURABLE HEAVEN!
"Fans of Ian M. Banks should run not walk to pick up this groundbreaking, headlong rush through realities, space and time." @catrionaward.bsky.social
Buy now: geni.us/immeasurable
"Fans of Ian M. Banks should run not walk to pick up this groundbreaking, headlong rush through realities, space and time." @catrionaward.bsky.social
Buy now: geni.us/immeasurable
November 5, 2025 at 7:22 PM
The race for reality has begun in @caspargeon.bsky.social's THE IMMEASURABLE HEAVEN!
"Fans of Ian M. Banks should run not walk to pick up this groundbreaking, headlong rush through realities, space and time." @catrionaward.bsky.social
Buy now: geni.us/immeasurable
"Fans of Ian M. Banks should run not walk to pick up this groundbreaking, headlong rush through realities, space and time." @catrionaward.bsky.social
Buy now: geni.us/immeasurable
Reposted by Caspar Geon
So it’s the tenth birthday of Midnight, a book that was nearly but not quite a lot of things. Happy birthday, little book. Still looking good.
November 5, 2025 at 11:27 AM
So it’s the tenth birthday of Midnight, a book that was nearly but not quite a lot of things. Happy birthday, little book. Still looking good.
Reposted by Caspar Geon
'...tool use in (humans and human ancestors) is probably much earlier and more continuous than we thought it was.'
Stone tool discovery suggests very first humans were inventors
The find shows that the technology was passed down through thousands of generations.
www.bbc.co.uk
November 5, 2025 at 2:49 PM
'...tool use in (humans and human ancestors) is probably much earlier and more continuous than we thought it was.'
Great to catch up with my old editor, Simon. ‘Tom the Not Unwelcome’ sounds like a useless but cheerful Saxon king that the chroniclers almost forgot about, and I’d be delighted to have that as my epithet
Had a very enjoyable catch-up with "the not unwelcome" (Science Fiction Encyclopaedia) @caspargeon.bsky.social yesterday. You will be hugely relieved to know that we put the entirety of science fiction publishing to rights and that everything is going to be absolutely perfect from now on. Or not.
November 2, 2025 at 4:21 PM
Great to catch up with my old editor, Simon. ‘Tom the Not Unwelcome’ sounds like a useless but cheerful Saxon king that the chroniclers almost forgot about, and I’d be delighted to have that as my epithet
Reposted by Caspar Geon
People who aren’t writers think writer’s block is at least as big and real a problem as I thought quicksand would be, as a child.
AI can help authors beat writer’s block, says Bloomsbury chief
Publisher last week reported jump in revenue in academic and professional arm thanks to AI licensing deal
www.theguardian.com
October 27, 2025 at 1:17 PM
People who aren’t writers think writer’s block is at least as big and real a problem as I thought quicksand would be, as a child.
Reposted by Caspar Geon
it's me, unnamed critter from bosch's triptych of the temptation of anthony!
November 1, 2025 at 12:16 AM
it's me, unnamed critter from bosch's triptych of the temptation of anthony!
Found a bunch of sketches I did of the 147th century post-human beasties from my first trilogy, the Amaranthine Spectrum. Had so much fun coming up with these offshoots of humanity and imagining their filthy, chaotic worlds - would love to write another book about them one day
October 27, 2025 at 3:26 PM
Found a bunch of sketches I did of the 147th century post-human beasties from my first trilogy, the Amaranthine Spectrum. Had so much fun coming up with these offshoots of humanity and imagining their filthy, chaotic worlds - would love to write another book about them one day
Lovely quote for Immeasurable Heaven just in from the disgustingly multitalented @cmkosemen.bsky.social
@solarisbooks.bsky.social
#booksky🪐📚💙
@solarisbooks.bsky.social
#booksky🪐📚💙
October 24, 2025 at 1:02 PM
Lovely quote for Immeasurable Heaven just in from the disgustingly multitalented @cmkosemen.bsky.social
@solarisbooks.bsky.social
#booksky🪐📚💙
@solarisbooks.bsky.social
#booksky🪐📚💙
Unfinished experimental sketch I did a while back of the Learned Gysemme, from my favourite @aptshadow.bsky.social story, Goblin Autumn
October 24, 2025 at 11:19 AM
Unfinished experimental sketch I did a while back of the Learned Gysemme, from my favourite @aptshadow.bsky.social story, Goblin Autumn
Reposted by Caspar Geon
Happy World Wombat Day! Sound on to listen to the very soothing munching noises of this chonky wombat...
October 22, 2025 at 12:24 PM
Happy World Wombat Day! Sound on to listen to the very soothing munching noises of this chonky wombat...
Reposted by Caspar Geon
Cover reveal for my Science Fiction Gothic Horror (!) novella out next year.
ICYMI, our friends over @scifinow.bsky.social have revealed the cover (designed by @petitecreme.bsky.social ) for the next instalment in @aptshadow.bsky.social 's TERRIBLE WORLDS series of standalone novellas: PREACHING TO THE CHOIR!
Learn more: www.scifinow.co.uk/books/preach...
Learn more: www.scifinow.co.uk/books/preach...
October 17, 2025 at 4:10 PM
Cover reveal for my Science Fiction Gothic Horror (!) novella out next year.
Reposted by Caspar Geon
Unsolicited writing advice, no. 154:
Feed your writing daily. Feed it with fiction, non-fiction, news, games, theatre, films, art. Feed it with conversation. Feed it with experience. Feed it with curiosity. Don't expect to get anything out unless you also keep putting in.
Feed your writing daily. Feed it with fiction, non-fiction, news, games, theatre, films, art. Feed it with conversation. Feed it with experience. Feed it with curiosity. Don't expect to get anything out unless you also keep putting in.
October 17, 2025 at 10:36 AM
Unsolicited writing advice, no. 154:
Feed your writing daily. Feed it with fiction, non-fiction, news, games, theatre, films, art. Feed it with conversation. Feed it with experience. Feed it with curiosity. Don't expect to get anything out unless you also keep putting in.
Feed your writing daily. Feed it with fiction, non-fiction, news, games, theatre, films, art. Feed it with conversation. Feed it with experience. Feed it with curiosity. Don't expect to get anything out unless you also keep putting in.
Reposted by Caspar Geon
My most recent novel is (spoiler, kind of) based on this idea. Link, as they say, in bio.
According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density – given that the universe contains a lot of relatively empty space, could the whole cosmos be a black hole?
Is the universe really one big black hole?
According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density – given that the universe contains a lot of relatively empty space, could the whole cosmos be a black hole?
www.newscientist.com
October 17, 2025 at 5:36 AM
My most recent novel is (spoiler, kind of) based on this idea. Link, as they say, in bio.
Reposted by Caspar Geon
Crab-like creatures are famed for having evolved five times in evolutionary history. But anteaters have evolved at least 12 times--in half the evolutionary span. Cool story by @jakebuehler.bsky.social for @science.org
‘Things keep evolving into anteaters.’ Odd animals arose at least 12 separate times
Findings speak to the dramatic impact ants and termites can have on mammalian evolution
www.science.org
July 28, 2025 at 3:54 PM
Crab-like creatures are famed for having evolved five times in evolutionary history. But anteaters have evolved at least 12 times--in half the evolutionary span. Cool story by @jakebuehler.bsky.social for @science.org
Reposted by Caspar Geon
I've decided that whilst critical success is lovely, I'd like to sell some books.
If you liked EXTREMOPHILE, recommend it to a pal! (If your pal is fucking COOL and not a narc)
Eco-terrorism biohacking body horror, smart shit with dumb characters. Your new favourite book
If you liked EXTREMOPHILE, recommend it to a pal! (If your pal is fucking COOL and not a narc)
Eco-terrorism biohacking body horror, smart shit with dumb characters. Your new favourite book
'A visceral, doesn't-give-a-damn biopunk thriller that treats the "punk" part of that subgenre not as mere window-dressing but as an antifascist shriek... vital and urgent SF that reaches places realist writing never could' ― @interzone.press
If you like cool shit get this 🕶️
geni.us/extremophile
If you like cool shit get this 🕶️
geni.us/extremophile
Extremophile
Pre-order now:
geni.us
October 13, 2025 at 10:40 AM
I've decided that whilst critical success is lovely, I'd like to sell some books.
If you liked EXTREMOPHILE, recommend it to a pal! (If your pal is fucking COOL and not a narc)
Eco-terrorism biohacking body horror, smart shit with dumb characters. Your new favourite book
If you liked EXTREMOPHILE, recommend it to a pal! (If your pal is fucking COOL and not a narc)
Eco-terrorism biohacking body horror, smart shit with dumb characters. Your new favourite book