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
GOOD NEWS! For the FIRST time ever, researchers have developed a targeted combination therapy that has successfully AND completely ELIMINATED KRAS-driven pancreatic tumors in experimental models. Tumors regressed COMPLETELY with NO recurrence OR major side effects. Let’s talk about that!
January 29, 2026 at 5:00 PM
GOOD NEWS! For the FIRST time ever, researchers have developed a targeted combination therapy that has successfully AND completely ELIMINATED KRAS-driven pancreatic tumors in experimental models. Tumors regressed COMPLETELY with NO recurrence OR major side effects. Let’s talk about that!
Come on down to Waterstones Worcester on the 25th of Feb, where I’ll be discussing some extremely bookish bookery with @starkholborn.bsky.social, @thomasdlee.bsky.social and Stephen Aryan
www.waterstones.com/events/scien...
@solarisbooks.bsky.social
www.waterstones.com/events/scien...
@solarisbooks.bsky.social
Science Fiction and Fantasy Author Panel - Character Creation in Fantastic Worlds | Events at Waterstones Bookshops | Waterstones
Events at Waterstones get you closer to the books and authors you admire most. Find information and tickets about Science Fiction and Fantasy Author Panel - Character Creation in Fantastic Worlds toda...
www.waterstones.com
January 30, 2026 at 1:53 PM
Come on down to Waterstones Worcester on the 25th of Feb, where I’ll be discussing some extremely bookish bookery with @starkholborn.bsky.social, @thomasdlee.bsky.social and Stephen Aryan
www.waterstones.com/events/scien...
@solarisbooks.bsky.social
www.waterstones.com/events/scien...
@solarisbooks.bsky.social
Reposted by Caspar Geon
ARCs of MORTEDANT's PERIL are moving out in the world and it's always a weird feeling; 'what are readers thinking?' Sadly, it's frowned on in publishing to hire a PI to track them down, kidnap them and bring them to a warehouse for questioning. Which, for the author, is very frustrating.
January 30, 2026 at 9:26 AM
ARCs of MORTEDANT's PERIL are moving out in the world and it's always a weird feeling; 'what are readers thinking?' Sadly, it's frowned on in publishing to hire a PI to track them down, kidnap them and bring them to a warehouse for questioning. Which, for the author, is very frustrating.
Reposted by Caspar Geon
ALSO, if you want to fall out with me there are ARCs of A NUMBERS GAME by the awful RJ DARK available too. So if gritty-but-funny northern working class crime is your thing then hit up @daturabooks.bsky.social.
January 30, 2026 at 9:33 AM
ALSO, if you want to fall out with me there are ARCs of A NUMBERS GAME by the awful RJ DARK available too. So if gritty-but-funny northern working class crime is your thing then hit up @daturabooks.bsky.social.
Reposted by Caspar Geon
This came up in my old posts today. Don’t know why, but it feels good to know that Andre 3000 specifically is this kind of guy.
January 26, 2026 at 12:38 PM
This came up in my old posts today. Don’t know why, but it feels good to know that Andre 3000 specifically is this kind of guy.
Reposted by Caspar Geon
We are DELIGHTED to see many Solaris titles on the BSFA Longlist!
Ft @edashtonwriting.bsky.social @voidcricket.bsky.social @taranhunt.bsky.social @caspargeon.bsky.social @samkhorton.bsky.social @rainewilson.bsky.social @csecooney.bsky.social & covers by Sam Gretton, Veronica Park & Kate Forrester!
Ft @edashtonwriting.bsky.social @voidcricket.bsky.social @taranhunt.bsky.social @caspargeon.bsky.social @samkhorton.bsky.social @rainewilson.bsky.social @csecooney.bsky.social & covers by Sam Gretton, Veronica Park & Kate Forrester!
January 24, 2026 at 2:14 PM
We are DELIGHTED to see many Solaris titles on the BSFA Longlist!
Ft @edashtonwriting.bsky.social @voidcricket.bsky.social @taranhunt.bsky.social @caspargeon.bsky.social @samkhorton.bsky.social @rainewilson.bsky.social @csecooney.bsky.social & covers by Sam Gretton, Veronica Park & Kate Forrester!
Ft @edashtonwriting.bsky.social @voidcricket.bsky.social @taranhunt.bsky.social @caspargeon.bsky.social @samkhorton.bsky.social @rainewilson.bsky.social @csecooney.bsky.social & covers by Sam Gretton, Veronica Park & Kate Forrester!
January 23, 2026 at 9:59 AM
Wonderful to be on the BSFA longlist for the Immeasurable Heaven, and to see that its brilliantly psychedelic cover by Sam Gretton is on there too. Thanks @bsfa.bsky.social !
@solarisbooks.bsky.social
@solarisbooks.bsky.social
January 23, 2026 at 9:52 AM
Wonderful to be on the BSFA longlist for the Immeasurable Heaven, and to see that its brilliantly psychedelic cover by Sam Gretton is on there too. Thanks @bsfa.bsky.social !
@solarisbooks.bsky.social
@solarisbooks.bsky.social
Reposted by Caspar Geon
Absolutely delighted to see my acid-western-queer-romance novella, FOR THE ROAD on the BSFA longlist!
It's a mega year (go check it out) but would be extremely honoured if you'd consider chucking in a nomination towards some of my rawest, strangest writing:
docs.google.com/forms/d/e/1F...
It's a mega year (go check it out) but would be extremely honoured if you'd consider chucking in a nomination towards some of my rawest, strangest writing:
docs.google.com/forms/d/e/1F...
January 22, 2026 at 3:56 PM
Absolutely delighted to see my acid-western-queer-romance novella, FOR THE ROAD on the BSFA longlist!
It's a mega year (go check it out) but would be extremely honoured if you'd consider chucking in a nomination towards some of my rawest, strangest writing:
docs.google.com/forms/d/e/1F...
It's a mega year (go check it out) but would be extremely honoured if you'd consider chucking in a nomination towards some of my rawest, strangest writing:
docs.google.com/forms/d/e/1F...
Reposted by Caspar Geon
I just thought everyone should see this
January 22, 2026 at 11:02 PM
I just thought everyone should see this
What an honour, huge thanks to everyone who voted 🍻
2026 Philip K. Dick Award Nominees Announced
file770.com/2026-philip-...
file770.com/2026-philip-...
January 14, 2026 at 9:46 AM
What an honour, huge thanks to everyone who voted 🍻
Immeasurable Heaven is 30% off on Amazon UK - according to my (possibly wrong) calculations that's 45 pages of alien characters, ice moon battles, stolen planets, fungal spaceships & dimension-hopping sorcerers per pound. There's also a very amusing incident with a kebab
@solarisbooks.bsky.social
@solarisbooks.bsky.social
January 11, 2026 at 10:12 AM
Immeasurable Heaven is 30% off on Amazon UK - according to my (possibly wrong) calculations that's 45 pages of alien characters, ice moon battles, stolen planets, fungal spaceships & dimension-hopping sorcerers per pound. There's also a very amusing incident with a kebab
@solarisbooks.bsky.social
@solarisbooks.bsky.social
Reposted by Caspar Geon
An absolutely mind-melting image taken by the Vera C. Rubin Observatory, featured in @sciam.bsky.social's Best Space Photos Of 2025: www.scientificamerican.com/article/the-...
There's just so much out there.
There's just so much out there.
January 6, 2026 at 9:58 PM
An absolutely mind-melting image taken by the Vera C. Rubin Observatory, featured in @sciam.bsky.social's Best Space Photos Of 2025: www.scientificamerican.com/article/the-...
There's just so much out there.
There's just so much out there.
Reposted by Caspar Geon
If you are a self-published / indie SFFH writer or reviewer, I have exciting news. We’ve just soft launched our new site, BookMatch, a matchmaking site for reviewers and books. We’re currently recruiting reviewers to our community. Want to be part of it? Come sign up! bookmatch.co.uk
bookmatch.co.uk
January 4, 2026 at 7:19 PM
If you are a self-published / indie SFFH writer or reviewer, I have exciting news. We’ve just soft launched our new site, BookMatch, a matchmaking site for reviewers and books. We’re currently recruiting reviewers to our community. Want to be part of it? Come sign up! bookmatch.co.uk
Reposted by Caspar Geon
To welcome in the New Year, Barnes & Noble are running a 25% off preorder sale!
FIRST MAGE ON THE MOON is a part of that very sale!
Use the code PREORDER25 to get 25% off; Premium members get an additional 10% off!
Only until 1st January 2026
www.barnesandnoble.com/w/first-mage...
FIRST MAGE ON THE MOON is a part of that very sale!
Use the code PREORDER25 to get 25% off; Premium members get an additional 10% off!
Only until 1st January 2026
www.barnesandnoble.com/w/first-mage...
First Mage on the Moon|Paperback
Cameron Johnston returns in this innovative space fantasy, where wizards race to be the first on the moon – also known as the land of the gods. A fast paced read perfect for fans of Adrian Tchaikovsky...
www.barnesandnoble.com
December 30, 2025 at 3:47 PM
To welcome in the New Year, Barnes & Noble are running a 25% off preorder sale!
FIRST MAGE ON THE MOON is a part of that very sale!
Use the code PREORDER25 to get 25% off; Premium members get an additional 10% off!
Only until 1st January 2026
www.barnesandnoble.com/w/first-mage...
FIRST MAGE ON THE MOON is a part of that very sale!
Use the code PREORDER25 to get 25% off; Premium members get an additional 10% off!
Only until 1st January 2026
www.barnesandnoble.com/w/first-mage...
Reposted by Caspar Geon
We asked @caspargeon.bsky.social aka @tomtoner.bsky.social for his best books of 2025, the book he'd love for the holidays & his anticipated reads of 2026.
Read on https://geni.us/SolarisBks2025 to find out why he picked @cameronjohnston.bsky.social & more!
https://geni.us/immeasurable
Read on https://geni.us/SolarisBks2025 to find out why he picked @cameronjohnston.bsky.social & more!
https://geni.us/immeasurable
December 30, 2025 at 10:02 PM
We asked @caspargeon.bsky.social aka @tomtoner.bsky.social for his best books of 2025, the book he'd love for the holidays & his anticipated reads of 2026.
Read on https://geni.us/SolarisBks2025 to find out why he picked @cameronjohnston.bsky.social & more!
https://geni.us/immeasurable
Read on https://geni.us/SolarisBks2025 to find out why he picked @cameronjohnston.bsky.social & more!
https://geni.us/immeasurable
Reposted by Caspar Geon
Just in case, here's my list of titles I loved in 2025. You might want to increase your TBR
It's time to finally talk about my favourite books of 2025, so I made a list, without any kind of order, that pretty much covers it. It may be great to fill your TBR!
You can check it here:
jamreads.com/articles/my-...
💙📚
You can check it here:
jamreads.com/articles/my-...
💙📚
JamReads - Making your TBR closer to infinite
In JamReads you will find content about books, and why you should read them more. This content may include reviews, interviews and occasionally, some news of the literary world
jamreads.com
December 27, 2025 at 12:45 PM
Just in case, here's my list of titles I loved in 2025. You might want to increase your TBR
Reposted by Caspar Geon
All over for another year, and you're probably wondering what to do with yourself. Watch this 👀! 🪐📚💙 #scifibooks #sciencefiction #booktube #wrapup #tierranking
youtu.be/m68Jww8mDjc
youtu.be/m68Jww8mDjc
I Ranked ALL 150 Science Fiction Books I Read in 2025
YouTube video by SciFiScavenger
youtu.be
December 29, 2025 at 7:12 AM
All over for another year, and you're probably wondering what to do with yourself. Watch this 👀! 🪐📚💙 #scifibooks #sciencefiction #booktube #wrapup #tierranking
youtu.be/m68Jww8mDjc
youtu.be/m68Jww8mDjc
Reposted by Caspar Geon
Genre rules are only guidelines anyway!
Want some Dragons in your Western? A locked boat murder mystery in your sci-fantasy? GBBO in outer space? A Necromantic bildungsroman? Searing examinations of war with bonus military Pteranodons? A literal plot device?
We've got all that and more!
1/3
Want some Dragons in your Western? A locked boat murder mystery in your sci-fantasy? GBBO in outer space? A Necromantic bildungsroman? Searing examinations of war with bonus military Pteranodons? A literal plot device?
We've got all that and more!
1/3
December 27, 2025 at 5:00 PM
Genre rules are only guidelines anyway!
Want some Dragons in your Western? A locked boat murder mystery in your sci-fantasy? GBBO in outer space? A Necromantic bildungsroman? Searing examinations of war with bonus military Pteranodons? A literal plot device?
We've got all that and more!
1/3
Want some Dragons in your Western? A locked boat murder mystery in your sci-fantasy? GBBO in outer space? A Necromantic bildungsroman? Searing examinations of war with bonus military Pteranodons? A literal plot device?
We've got all that and more!
1/3
Reposted by Caspar Geon
It's time to finally talk about my favourite books of 2025, so I made a list, without any kind of order, that pretty much covers it. It may be great to fill your TBR!
You can check it here:
jamreads.com/articles/my-...
💙📚
You can check it here:
jamreads.com/articles/my-...
💙📚
JamReads - Making your TBR closer to infinite
In JamReads you will find content about books, and why you should read them more. This content may include reviews, interviews and occasionally, some news of the literary world
jamreads.com
December 26, 2025 at 9:32 PM
It's time to finally talk about my favourite books of 2025, so I made a list, without any kind of order, that pretty much covers it. It may be great to fill your TBR!
You can check it here:
jamreads.com/articles/my-...
💙📚
You can check it here:
jamreads.com/articles/my-...
💙📚
Reposted by Caspar Geon
If you like a book?
Review it. Ask your library to buy it. If you can afford it, buy a copy for a friend. Recommend it wherever you're social. Send the author an email, or a skeet, or a Ko-Fi. Write fanfic. Blow under the wings of the paper airplane so it can fly a little farther.
Review it. Ask your library to buy it. If you can afford it, buy a copy for a friend. Recommend it wherever you're social. Send the author an email, or a skeet, or a Ko-Fi. Write fanfic. Blow under the wings of the paper airplane so it can fly a little farther.
December 24, 2025 at 2:23 AM
If you like a book?
Review it. Ask your library to buy it. If you can afford it, buy a copy for a friend. Recommend it wherever you're social. Send the author an email, or a skeet, or a Ko-Fi. Write fanfic. Blow under the wings of the paper airplane so it can fly a little farther.
Review it. Ask your library to buy it. If you can afford it, buy a copy for a friend. Recommend it wherever you're social. Send the author an email, or a skeet, or a Ko-Fi. Write fanfic. Blow under the wings of the paper airplane so it can fly a little farther.
Reposted by Caspar Geon
Lovely chat, this. Including tantalising idea for unwritten Culture novel (man has weapon with his own memories encoded in the ammo) 👇
Talking about _The Player of Games_ by Iain M. Banks.
www.newscientist.com/video/250912...
www.newscientist.com/video/250912...
Author Ken MacLeod on the life and work of the late Iain M. Banks
Sci-fi author Ken MacLeod shares stories about his friend, the late Iain M. Banks, author of the genre-redefining Culture series of science-fiction novels
www.newscientist.com
December 20, 2025 at 10:29 AM
Lovely chat, this. Including tantalising idea for unwritten Culture novel (man has weapon with his own memories encoded in the ammo) 👇
Reposted by Caspar Geon
I'd like to talk today about one of the more egregious examples of failure in publishing I've seen: the presentation and packaging of this book.
December 19, 2025 at 12:29 AM
I'd like to talk today about one of the more egregious examples of failure in publishing I've seen: the presentation and packaging of this book.
Reposted by Caspar Geon
Not just a novelist, @ursulakleguin.com was also a cartographer. Her fictional geographies were on display this fall at London’s Architectural Association Gallery, and a companion book on Silver Press sheds new light on her peerless world-building. Read our interview with editor/curator Sarah Shin.
Maps and Legends: The Spectacular Cartography of Ursula K. Le Guin - Library of America
Mapmaking lay at the heart of Ursula K. Le Guin’s worldbuilding. An able illustrator whose subjects ranged from realist watercolors to cartoon cats, the author of such SFF classics as The Left Hand of...
www.loa.org
December 11, 2025 at 3:27 PM
Not just a novelist, @ursulakleguin.com was also a cartographer. Her fictional geographies were on display this fall at London’s Architectural Association Gallery, and a companion book on Silver Press sheds new light on her peerless world-building. Read our interview with editor/curator Sarah Shin.
Reposted by Caspar Geon
Still time to get the "Too Like the Lightning" ebook for $2.99 today in the goldbox sale: www.amazon.com/Too-Like-Lig...
December 11, 2025 at 10:38 PM
Still time to get the "Too Like the Lightning" ebook for $2.99 today in the goldbox sale: www.amazon.com/Too-Like-Lig...