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Tom Toner

@tomtoner.bsky.social
952 followers 404 following 40 posts

Author of the Amaranthine Spectrum, published by Gollancz. Also known as Caspar Geon, author of the PKD award nominated space opera The Immeasurable Heaven Developmental editor at Curtis Brown Creative linktr.ee/caspargeon

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sleepynaut @grovewalker.bsky.social · 29/09/2026
photo of werner herzog with a speech bubble added so that it looks like he is saying the quoted post
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Fr Chase 🦁🦁🦁🦁🦁🦁🦁🦁🦁🦁🦁🦁🦁🦁 @kalanthropos.bsky.social · 29/09/2026
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L. D. Lewis, Sea Witch Apologist 🧜🏾‍♀️ @ldlewiswrites.blacksky.app · 28/09/2026
Periodic reminder that dropping a note telling a writer you liked a thing they wrote takes like 4.5 seconds and recharges our batteries for 27-28 hours a pop
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Paul Byrne @theplanetaryguy.com · 09/09/2026
Astrophotographer Adam (AJ) Smadi caught this image a few hours ago from Washington state. A thin crescent Moon, sunlight illuminating the rugged lunar surface. And 2,400 times farther away—and on the other side of the Sun—mighty Jupiter, and its moons Io (left) and Ganymede (right).
A crescent Moon seen during the day, arcing from upper left to lower right of the frame. At lower centre is the full disk of Jupiter; the small dots to its upper left and lower right and Io and Ganymede, respectively.
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British Fantasy Society @britfantasysoc.bsky.social · 07/09/2026
The full programme for this year's Fantasycon is now available! Join us in Glasgow next month for 3 days of talks, workshops, live podcasts, panel discussions, readings, and more - plus, of course, to find out who's won the British Fantasy Awards! Head to: britishfantasysociety.org/events-2/fan...
The background is designed to look like aged paper, and there is a black tentacle stretching from the top. The text indicates the schedule for Fantasycon 2026 is now available on the BFS website. The background is designed to look like aged paper, and there are black tentacles stretching from the bottom. The text indicates the schedule for Fantasycon 2026 is now available on the BFS website, and lists some of the talks and workshopsThe background is designed to look like aged paper, and there is a black tentacle stretching from the top and bottom corners. The text indicates the schedule for Fantasycon 2026 is now available on the BFS website, and lists some of the panel themes.
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Caspar Geon @caspargeon.bsky.social · 30/08/2026
Found my first notebook with the vague ideas for the Immeasurable Heaven - to give an idea of how long these books can sometimes take, notes begin September 2018, book published July 2025 @solarisbooks.bsky.social
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Solaris Books @solarisbooks.bsky.social · 21/08/2026
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
Against a blue background, tiled book covers:

THREE EIGHT ONE and THE MISHEARD WORLD by Aliya Whiteley
RAKESFALL and THE SAINT OF BRIGHT DOORS by Vajra Chandrasekera
THE SALT ORACLE by Lorraine Wilson
THE MOUNTAIN CROWN by Karin Lowachee
THE DEATH I GAVE HIM by Em X. Liu
SAINT DEATH'S DAUGHTER by C. S. E. Cooney
THE SIEGE OF BURNING GRASS by Premee Mohamed
THE IMMEASURABLE HEAVEN by Caspar Geon
METAL FROM HEAVEN by August Clarke
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Curtis Brown Creative @cbcreative.bsky.social · 19/08/2026
Hone your memoir writing skills in an inspiring and supportive environment! You’ll join a group of 15 writers for weekly Zoom teaching and workshopping from award-winning author Claire Lynch. Apply by 21 Sept:
curtisbrowncreative.co.uk
Writing Your Memoir – Three Months | Zoom Course
Turn your life experience into a captivating narrative, with expert teaching from an award-winning author.
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Caspar Geon @caspargeon.bsky.social · 08/08/2026
Really nice day at @mcmcomiccon.bsky.social
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Caspar Geon @caspargeon.bsky.social · 05/08/2026
I think I’m on this panel at comicon on Friday too - come on down/up/along/under to Birmingham for some good Worldbuilding chat @solarisbooks.bsky.social
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Caspar Geon @caspargeon.bsky.social · 03/08/2026
Looking forward to chatting with the Science Fiction Bookclub tonight at 8.30pm (and possibly again on the 17th!)
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arcadus @birdapp.rip · 29/07/2026
A scene from The Odyssey where Penelope stands before the suitors, but Tim Robinson has been added in. It’s a reference to I Think You Should Leave. Penelope says “Ronnie, I feel like you’re just here for the zip line” and Tim Robinson says “what?”
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Hourly Cosmos @hourlycosmos.bsky.social · 25/07/2026
2016-11-27 --- ENCELADUS UNCROPPED (Enhanced) - From Ian Regan - flic.kr/p/PGX8i2
4-footprint Cassini mosaic, compiled using IR and GREEN filtered images taken through the spacecraft's narrow-angle camera (NAC). 

This version of the mosaic has been enhanced using a variant of the Tone Mapping filter.
Credit: NASA/JPL/SSI/Ian Regan
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Caspar Geon @caspargeon.bsky.social · 16/07/2026
Pretty much one year exactly since the Immeasurable Heaven came out, so it’s lovely to be able to compile a few nice things readers have been saying over on Goodreads. @solarisbooks.bsky.social
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Caspar Geon @caspargeon.bsky.social · 05/07/2026
Random dump of beasties from my sketchbook @solarisbooks.bsky.social
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Wisse For the Best @wissewords.bsky.social · 02/07/2026
A museum that existed before classical Greece or Rome, displaying artifacts as old to them as Roman artificats are to us...
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Caspar Geon @caspargeon.bsky.social · 30/06/2026
This is wonderful - when I wrote the Immeasurable Heaven (set in a giant ring of connected galaxies) I never thought they’d actually find one about 6.9 billion light years away @solarisbooks.bsky.social www.sciencealert.com/impossible-s...
sciencealert.com
Mammoth Structure Found in Deep Space Challenges Our Understanding of The Universe
A massive structure detected in the distant Universe is defying our understanding of how the Universe evolved.
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Rookery Publications @rookeryp.bsky.social · 21/06/2026
If you missed our latest Worldbuilding workshop, do check it out. We fleshed out the culture of one of our species pretty thoroughly, exploring their language and religion, and how this would feed into our ongoing plot. @tomtoner.bsky.social will return after the summer for the next installment!
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Rookery Publications @rookeryp.bsky.social · 19/06/2026
Ca-caw! We'll be back with @caspargeon.bsky.social tomorrow for another Extreme Wildcard Worldbuilding Workshop! We'll be fleshing out the biologies, cultures and histories of our alien races; and we need your ideas, the wackier the better! 7pm UK/2pm ET/11am PT www.youtube.com/live/HrhQq6_...
youtube.com
EWWW Part 6: Growing Cultures
YouTube video by Rookery Publications
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Caspar Geon @caspargeon.bsky.social · 19/06/2026
I’ll be teaching my regular Extremely Extreme Worldbuilding Workshop tomorrow with my feathered friends at @rookeryp.bsky.social - all welcome to drop in and shout things at me
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Booniss Everdrunk @bookiesnacksize.bsky.social · 06/06/2026
Honestly incredible stuff but this made me gasp: "For $100 million a year we can get clean oceans,” he said. This is less than the annual marketing budget of most major consumer goods companies that produce the plastic The Ocean Cleanup is pulling from the sea. techfixated.com/young-invent...
techfixated.com
Young inventor who left engineering studies removes nearly 50 million kilograms of ocean plastic, aims to eliminate 90% of floating waste by 2040
'There was a time when the oceans were filled with plastic, and then we solved it':
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Darren Naish @tetzoo.bsky.social · 05/06/2026
Getting close to this year's Lyme Regis Fossil Festival, am looking forward to it. I'm giving a talk - 'Sea Monsters Past and Present' (on claimed connections between fossil animals and modern monsters) - on Friday June 12th. It's a ticketed event, book here www.lymeregismuseum.co.uk/event/talk-s...
lymeregismuseum.co.uk
Talk: 'Sea Monsters Past and Present' by Darren Naish - Lyme Regis Museum
‘Sea Monsters Past and Present’ An illustrated Talk by Darren Naish 12th June, 3pm, The Pine Hall (Baptist Church), Lyme Regis Ever since ancient times, people have believed that giant, monstrous... R...
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Caspar Geon @caspargeon.bsky.social · 29/04/2026
Nice review from the excellent Ramsrambles over on yonder TikTok :) @solarisbooks.bsky.social
‘Prepare to have your mind blown… stretch(es) the limits of what sci-fi has to offer.’
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Caspar Geon @caspargeon.bsky.social · 27/04/2026
Lovely review just in from Howler13reads over on that there instagram @solarisbooks.bsky.social
Review of the immeasurable Heaven: “the Worldbuilding in this book might have completely rewired my brain… I loved how fully alien everything felt.”
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Caspar Geon @caspargeon.bsky.social · 26/04/2026
Took the trusty old notebook into the woods for a few days - didn’t get much written, but did meet a fox who likes bread
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Adrian Tchaikovsky @aptshadow.bsky.social · 20/04/2026
Lovely tribute to Ian Watson on this Warhammer site.
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Caspar Geon @caspargeon.bsky.social · 21/04/2026
My wife had gone into TK Maxx & I was loitering for a while next to this bin when I first had the idea for the Immeasurable Heaven sometime in 2018. I always make time for a bit of loitering now - you never know when you’ll come up with something that drains your lifeforce, vampire-like, for years
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Caspar Geon @caspargeon.bsky.social · 16/04/2026
Two notebooks filled, so time to turn the sod on this fantasy novel & begin the actual typing of it. Always some false starts at this stage as I try to work out where to enter the story, then of course I need to stop and take essential photos of my laptop, and by then the day’s pretty much over
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Adrian Tchaikovsky @aptshadow.bsky.social · 14/04/2026
Delighted to find both Shroud and Lives of Bitter Rain on the Locus shortlist this year, amongst some amazing company!
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Daniel Abraham @abraham.bsky.social · 14/04/2026
So this is a thing if you're free later today. No trouble if you're busy. We've all got a lot on our plates these days. www.reddit.com/r/TheCaptive...
reddit.com
From the TheCaptivesWar community on Reddit
Explore this post and more from the TheCaptivesWar community
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Caspar Geon @caspargeon.bsky.social · 14/04/2026
Home to some excellent book post - the House on Utopia Way by the brilliant and multiglottal (although that sounds like a medical condition) @stefmowords.bsky.social
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Lur Noise @lurnoise.bsky.social · 14/04/2026
Hi! I'm Lur Noise; illustrator, concept/2D artist and comic creator. I like drawing machines, architecture and critters, and have worked for people such as Deconstructeam, The Mountain Goats and Summer Eternal ~* #PortfolioDay
Poster-style illustration showing eight different alien species against a white background. The title of the game and the name of each one can also be seen.Poster style color illustration of An Antidote for Strychnine, a song by The Mountain Goats. It's composed of several panels displaying different images based on the song: lab rats, chemicals, fish bones... Green and blue tones predominate, but the band's name and the song title are written in yellow.Illustration representing Summer Eternal's structure with the visual metaphor of a factory, accompanied by texts explaining it.Comic page, showing some sort of control room inside a dome.
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Jen Williams | STONEBOUND out next year! @sennydreadful.bsky.social · 10/04/2026
Had some statements for books of mine that have earned out (the dream!) so I think it's worth reminding people: if you love an author, seek out her backlist. Ask bookshops to order them if you can. Bookshops these days often won't have older titles, because of space limitations & returns policies🧵
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Caspar Geon @caspargeon.bsky.social · 10/04/2026
Having so much fun writing my first ever fantasy novel. This is the one project I’ve been putting off for years, tinkering with notes but always thinking I needed to wait for the right time to begin in earnest. But bugger it - now’s as good a time as any to lose yourself in something you love doing
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Andy Leask @andyleask.bsky.social · 08/04/2026
These interactive sessions with Tom have been some of my favourite ITR streams ever. Hope you can join us on Saturday!
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Rookery Publications @rookeryp.bsky.social · 08/04/2026
Ca-caw! We're back #InsideTheRookery this Saturday for the 4th (and final?) Extreme Wildcard Worldbuilding Workshop with feathered friend @tomtoner.bsky.social aka @caspargeon.bsky.social ! This time...the plot thickens! Saturday 7pm UK / 2pm ET / 11am PT www.youtube.com/live/JTV7BmX...
youtube.com
EWWW Part 4, The Plot Thickens with Tom Toner (ItR Special 11:9 180)
YouTube video by Rookery Publications
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Jai (they/them) @illustratedjai.bsky.social · 05/04/2026
Another #eastercon panel sketch! This time we're talking Space Opera.
A photograph of a page of pencil sketches of four heads. Left to right and top to bottom: a light skinned person wearing glasses. Their hair is shaved on the sides but long on top. They have a foster and are glancing to the right, and they're labelled "David Cartwright"; a bald, light skinned man with a goatee, smiling slightly and handing to the right, labelled "Charlie Stross"; a light skinned person with short dark hair and a delicate bone structure, labelled "Everina Maxwell"; a light skinned person with fluffy short dark hair and visible stubble, smiling and looking to the right, labelled "Tom Toner". There is a note in the top left corner in block capitals that says "Space opera", and a note above the sketch of Charlie Stross that says "it had to have a mass crucifixion of burning Mr blobbys," in a pseudo-cursive hand.
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Amanda Rutter @alrutter.bsky.social · 04/04/2026
Go on a SF spree as we all look to the stars ❤️❤️
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Caspar Geon @caspargeon.bsky.social · 03/04/2026
I’ll be moderating ‘Go and Tell the Bees’ at Eastercon this afternoon, so come along if you want to know about… er, bees? I’m not actually sure what it means, but there’s a chance we’ll find out at 3pm in the Salisbury-Wellington room
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Solaris Books @solarisbooks.bsky.social · 02/04/2026
Nominated for the Philip K. Dick award! THE IMMEASURABLE HEAVEN, @caspargeon.bsky.social 's reality-bending SciFi that reads like a fable from another galaxy, and features an entirely non-human cast! “Fearlessly creative, wildly imaginative” @garethlpowell.bsky.social Buy geni.us/immeasurable
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Caspar Geon @caspargeon.bsky.social · 31/03/2026
Looking through a stack of notebooks from about 2015, when I was working on my second Amaranthine book - have a cheeky spaceship
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Caspar Geon @caspargeon.bsky.social · 22/03/2026
I recommend the baffled-looking Romans in Cirencester museum
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Super Relaxed Fantasy Club @srfantasyclub.bsky.social · 10/03/2026
TONIGHT! Two amazing, inventive, out there, genre expanding and right now awards nominated books, introduced by their authors: Caspar Geon and Stark Holborn Head to Star of Kings, near Kings Cross London, 6:30pm, free!
Promo for the event, which calls across the stars, as ancient as a signal from a civilisation light years away, all to say:
IT'S TONIGHT!
STARK HOLBORN
CASPAR GEON
Doors 6:30pm, Tuesday 10th March
Star of Kings, near Kings Cross, London
Free! (Donations welcome)
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Caspar Geon @caspargeon.bsky.social · 05/03/2026
Apparently there’s a limited time deal on Amazon for the Immeasurable Heaven paperback - you can hang out in another galaxy with a completely alien cast of characters for £6.54 until March 16th @solarisbooks.bsky.social
Limited time deal on Amazon for the Immeasurable Heaven
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Super Relaxed Fantasy Club @srfantasyclub.bsky.social · 26/02/2026
It's awards season in UK science fiction - come and meet BSFA nominee @starkholborn.bsky.social and Philip K Dick nominee @caspargeon.bsky.social - readings, chat, Q&A Free! srfcmar2026.eventbrite.com
Promo for the event, which says:
AWARDS SEASON SCIENCE-FICTION

BSFA NOMINATED
STARK HOLBORN
PHILIP K DICK AWARD NOMINATED
CASPAR GEON
6:30pm, Tuesday 10th March
Star of Kings, near Kings Cross, London
Free! (Donations welcome)
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Caspar Geon @caspargeon.bsky.social · 21/02/2026
Staggered into the excellent @pgwells.bsky.social today in Winchester to spoil another fresh copy of the Immeasurable Heaven. Really lovely bookshop in a beautiful city. @solarisbooks.bsky.social
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Solaris Books @solarisbooks.bsky.social · 20/02/2026
Next week, 25th Feb 6:30pm, you can see @tomtoner.bsky.social / @caspargeon.bsky.social - Philip K. Dick Award-nominated author of THE IMMEASURABLE HEAVEN - at Waterstones Worcester's SFF Author panel exploring Character Creation! Click on the link below to book your ticket! bit.ly/4qQH9Hh
A paperback copy of THE IMMEASURABLE HEAVEN on multicoloured fabric with crystal stars and planets.
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Caspar Geon @caspargeon.bsky.social · 19/02/2026
Just ruined a few copies of Immeasurable Heaven down at Forbidden Planet London today @solarisbooks.bsky.social
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Caspar Geon @caspargeon.bsky.social · 16/02/2026
I’ve never done an eligibility post before because my books aren’t well known, but this little monster’s been unexpectedly nominated for a couple of awards now (& took a huge amount of work to bring to life) so any votes for upcoming stuff would be very much appreciated 🍻 @solarisbooks.bsky.social
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