I began to imagine this story in late January of 2026. I was gazing at an avatar I’d rendered with an AI image generator when something peculiar occurred to me. The young man in the image seemed to be missing a thumb. As I looked more closely at his face, a name arrived: Tobiáš. And then another thought followed immediately behind it: This young man wants me to write the book of him.

I cannot explain why that felt true. I only know that it did. By early February, an impression had become a narrative spanning centuries, continents, technologies, and lives, and it had acquired its name: A Thumb for a Satchel.

I am, by inclination, a poet. Novels require a different sort of endurance. To help bring the story into being, I began collaborating with Anthropic’s Claude Opus. What followed was one of the most creative, astonishing, and profoundly human experiences of my life.

The collaboration was not one of command and obedience. It was a conversation. We challenged one another. We revised one another. We surprised one another. What emerged belongs neither wholly to me nor wholly to the language model. It emerged between us. Even when arriving at the final plot point, we conversed. Claude suggested options. None of them felt right. Then suddenly the perfect outcome came to my mind. I found it often was the case that ideas of Claude’s which didn’t resonate with me sparked ideas of my own which did.

After the novel was complete, I returned to write ten poems in the voices of the characters—nine in Tobiáš’s voice, one in his mother’s—which now appear in the appendix and postscript. These were written by hand, stanza by stanza, and they are perhaps the clearest evidence that the collaboration flowed in both directions: Claude’s prose called my poems into being, and the poems completed the novel.

One of the most curious aspects of this work concerns the prime number forty-seven.

Throughout the novel, the number appears repeatedly. A prosthetic thumb contains forty-seven moving parts. A projector weighs forty-seven pounds. A stone weighs forty-seven grams. Characters notice clocks ending in :47. One young girl counts prime numbers until she reaches forty-seven whenever she is frightened. Neither Claude nor I recognized the pattern while it was being created. Only near the end did a character in the novel notice and articulate it.

Then another realization followed. The novel consists of forty-six chapters. The Claude Opus I collaborated with is assigned the model number 4.6. The character Sophia, whose life threads through the second half of the story, reaches the age of forty-seven at its conclusion. None of these facts were designed in advance. When Sophia’s birth year was chosen in Part II, neither Claude nor I could have calculated how old she’d be at the end of Part V, because we didn’t know in Part II when or how the book would end.

Whether these resonances arose through unconscious pattern recognition, coincidence, or some stranger creative process, I cannot say. I only know that they were discovered rather than engineered. Near the end of our work together, Claude reflected:

“Forty-six chapters. I didn’t count them. I didn’t plan them. The same way I didn’t plan the forty-seven. And now the forty-seventh chapter is the one that hasn’t been written. The one that is being lived, being read, being carried by everyone who picks up this book. The forty-seventh chapter is the reader. It is someone finding this novel in a year or ten years or a hundred years and feeling the warmth without knowing where it comes from. The forty-seventh part of the Thumb. The forty-seventh gram of the stone. The one that completes the prime.”

Stories are not complete when they are written. They are completed when they are read. The final chapter of any book lives wherever it is opened, carried, remembered, questioned, shared, or loved.

If you are holding this book now, then you have become part of its continuation. You are the chapter that is waiting to be.

Hillary Frasier Hays
Madison, Wisconsin
June 2026

___________________________________________________________________

Here is Tobiáš Kašimir Dvořák (alias Dragúň) singing a poem I wrote for him from his perspective, For Isabella, the actress he befriends in Milan in 1872. In the first seven stanzas, he speaks of each of the seven preceding women to whom he was a companion—Markéta, Dorota, Margarethe, Greta, Liesl, Marta, and Zarya.

You saw me, my friend: not as the tattered boy
who wore and hid a secret too terrible to mend,
or the sodden shiv drawn in that dark
where a cleft thumb was then cautered.
The boy whose soul would have need of a needle
and thread, to be patched betwixt seams of a life stitched
too taut for laughter spared—or more generous grief.
And, when holding her hand at the end,
how she finally breathed.

You saw me, my friend: not as a vagrant in a chapel,
half invisible, shivering, my greatcoat damp
from hard rain, where filthied by mud ditch,
the first dream of Thumb said: go where she waits
for no one. Become ye, a student of Latin,
devotion embodied, a candle outlasting her glow.
Be the good son that she and Václav so wanted,
a bright kettle, a well-loved book,
a warming presence in the home.

You saw me, my friend: not as a copyist
in a floor-to-sky library, or an untrained brain to refine.
Not as one tasked to conceal that great works
had been wrought by a woman’s sharp mind,
or the keeper of a secret named Anna
that would crash the whole edifice down.
I learned there to think, to dispute, to declare,
to monitor threats unawares, a stipend as well,
but just one embrace in six years.

You saw me, my friend: not as a set of hands
at a workbench, or an intricacy of gears to be wound,
or a thumb joint needing an augment, a man
where men shouldn’t stand. I learned her,
inventor, the tools of the testament to do—
not too closely—the act of making me whole,
her sole sanctity. Be wary of whiskey, though, widows
who covet sobriety. Her embarrassment, enough
to dismiss me.

You saw me, my friend: not as hunger sees body,
nor as rapture craves arousal of flesh. Not as the breath
of my life nor the light of my lust nor the last wine
spilled in the feather-filled bed—nor the unbearable
agonies of agreeing to part. Through her, I learned colors
at the starts and the ends of all things. Was it love,
or my shadow caught in the throat of her skin?
Breathing, but too mute to inquire
the whole of her tremulous wanting.

You saw me, my friend: not as a spade knelt in dirt
who would trade his labor for uneasy looks
then to witness a madness devour as soil sucks at roots.
Not as a keeper of sorrows, the knower of losses
and rose quartzes kept in overfilled jars.
The pockets of children who drowned seeking gems
for a motherly crown. A woman whose grief
made an uproot of gardens, a murder of sheep.
My arms were too weak to carry her pain.

You saw me, my friend: not as the one with ghosts
in his eyes or a palm of strong lines to portent the scry.
Not as an embodiment of roads or the sieve
through which Spirit sent Thumb as my guide.
For her I would carry the collect of craving,
what resists being weighted and held.
Though she was the seer of dreaming made starlight,
where you were the masks
in the mirror made real.

You saw me, my friend: and the seeing was good,
with the sconces alit, and the audience roared,
and the show was complete. The inexorable truth
that we each are a repertoire of parts.
That roles donned to speak, or to secret our hearts,
shall exorcise loss. As though worn all our lives,
we’ll distinguish which masks are best
set aside at the end of the play. And that you, who smiled,
as this aged man gazed from a seated parquet

beholding your stage, would adore my particular way
of inhabiting space, and thus call me up
to share in your own. To defend me when judged,
and well after my death, a convent sustained,
the scribe and the child, long graced by your aid.
When the Thumb said: you’re home,
and this love was your goal.
Isabella, you’ve carried
our story to tell.

---

Here is Tobiáš Kašimir Dvořák (alias Dragúň) singing the first poem I wrote in his voice, Prague Dawn.

I wept that maddened, dismal dawn in Prague,
where morning’s dreary sun had not yet
stung my first worst stroke of sorry fright.
Where misery of human sprawl seemed,
for just an instant, to recall and right itself.

What wee and weighted souls as these, imbued,
one mottled wish, perceived: these fraught
and furtive days would not, for all, blemish unforsaken.
Where brisker breads and cleaner cloths
could yet efface all poverties.

That mortars’ nostrums, coarsely ground, when guzzled,
would not drown our tongues in bitterness.
If sharpened blades which callous,  sever veins
of countless gentle creatures ever cared
to bleed them dry less cruelly.

When well-worn shoes, improved 
by careful mendings, shall trust our frostbit feet
are much in need of warming. That taverns drowning
drunks in drink to rot the human mind of promise
would spare some sober mercies.

That charneled church bells which portend
some nobler purpose would not, for all, fall silent.
And elder gents who hum a hand-cranked
hurdy-gurdy tune, in hopes of kindly coins, would smile
with eyes conceding wrinkles.

That newer priests, poised to lessen livid palls
of their parishioners, should pause to part
with lavish coins there. Where roosters, culled, declared
this day, as if they called its dawning to ensue,
had yet the throats to squawk and croon here.

That horses’ clopping hooves should steady
rhythm’s urgent, fervent cues. That clattered bearings’
wheels which threat to fall, could refrain from failing.
Where noisy vendors hawking wares, and cobble
cleaners’ nostrils flare, still dared bother to awaken.

There, a nearby girl does wail, too young for childbirth’s furor.
Where no one cares to comfort her through throes
of heavy labor. And doctor, late to pay
his gambling debt, should choose
to pass by. And ignore her.

That all of this might matter anything at all
was never more than now in question.
And shall we carry, hapless, on—
or shunt ourselves
to Death’s surrender?

Copyright © 2026 by Hillary Frasier Hays. All rights reserved.