I wake up every morning to things that shouldn’t be there.
This morning it’s a metro ticket for Line 15. There is no Line 15. I’ve lived in Paris for eight years and I know every line, every connection, every station that smells like piss and disappointment. But here’s this ticket, still warm between my fingers like someone’s just handed it to me. Next to it, a brass key that looks old—really old, the kind of old that makes your teeth ache when you touch it. And a violet. Pressed flat, purple as a bruise, with a little tag that says “Père Lachaise” in handwriting I don’t recognise but somehow know is mine.
I’ve never been to Père Lachaise. Not awake, anyway.
The insomnia started in February. Now it’s May and I sleep maybe three hours a night, but apparently those three hours are busy ones. My flat looks like a flea market’s thrown up in it. Matchboxes from cafés I swear close before I even wake up. Postcards I’ve written to people I don’t know—women with names like Céleste and Marguerite who might be my great-great-grandmothers, or might be nobody at all. A marble that rolls uphill, which should be impossible but there it goes, defying physics on my kitchen floor every bloody morning.
I started taking pictures of everything. Dating them, measuring them, writing down where I found each thing. If I’m going mad, at least I’ll have documentation.
But then I found the map.
Tuesday morning, crumpled in my fist so tight it left paper cuts between my fingers. A 1942 metro map, the kind they don’t print anymore, showing all the stations they sealed up during the war. And there, drawn in pencil between Arsenal and Bastille—Line 15, beside handwritten words that made my stomach drop: “Follow the violet scent. Third entrance. Madame Ocelot remembers.”
My handwriting. My words. Instructions I’d left for myself from a place I couldn’t remember being.
So that evening, when the light started going soft and blue over the Seine, I decided to follow my own breadcrumbs to try to make sense of it all. The 4th arrondissement feels different at dusk—like the shadows stretch longer than they should, like familiar corners suddenly have doorways you never noticed before. I found myself on a street that my regular map insisted didn’t exist. The sign said “Rue des Impossibles” and flickered like a candle flame.
The buildings here were wrong in a way I couldn’t put my finger on. They seemed to remember things—other buildings, perhaps, that used to stand here before Haussmann came through and flattened half of medieval Paris to make his pretty boulevards. I could almost see the ghost-shapes of demolished houses, their windows glowing with light that had been extinguished a hundred years ago.
“Marie,” someone called from above.
An old woman was leaning out of a third-floor window, but her flower box extended way too far into empty air, geraniums trailing down through nothing until their roots seemed to be drinking from the cobblestones themselves. She had silver hair and eyes the exact colour of the violets I’d been finding.
“You’re early tonight,” she said.
I watched her come down a spiral staircase that started inside her building but flowed outside, curving down through the pavement, through layers of earth and old foundations until it disappeared into the archaeological mess that Paris is built on. Everything here felt like that—a little too much, a little beyond the edges of what should be possible.
“I’m Madame Ocelot,” she said, settling next to me on a bench that hadn’t been there a second before. “You’ve been visiting us for weeks now. Every sleepwalker finds their way eventually.”
She gestured towards what looked like a normal metro entrance, except the proportions were off somehow, like looking at a photograph of a photograph. The green Art Nouveau ironwork was familiar but wrong, the way things look in dreams when your brain is trying to fill in details it doesn’t actually remember.
“Your Line 15,” she said. “We’ve been keeping it running since 1943. Some connections are too important to let the authorities shut down.”
The stairs going down multiplied as we walked. The familiar white tiles gave way to older stone, then to rock that looked carved by hand in some century I couldn’t place. The platform stretched farther than electric light could reach, and the tracks had an oily shimmer that suggested they weren’t made entirely of steel.
Other people waited in the shadows. Night-shift workers who’d found this place during fifteen-minute breaks, insomniacs like me, and stranger figures—people who looked like they’d been displaced from neighbourhoods that didn’t exist any more, like ghosts of urban renewal. A kid was collecting buttons in mason jars. Each jar hummed with something that might have been memory. A woman in a paint-covered apron was gardening in empty air, her hands moving through space where invisible flowers apparently grew.
“We take care of what Paris forgot,” Madame Ocelot said as something that was almost a train pulled into the station. It looked more like connected rooms, each one opening onto a different version of the city. “Sleepwalkers gather the pieces that fall through cracks. You’ve been collecting evidence without knowing what it was evidence of.”
The ride showed me Paris as layers—every version of the city that had ever existed, running parallel to each other in separate tunnels. We passed through medieval stations where people in rough wool got on cars that smelt like woodsmoke. Belle Époque platforms with brass fixtures and gaslight, where women in impossible hats discussed philosophy whilst waiting for trains that ran on steam and springs.
At Saint-Sulpice-des-Rêves—three levels below the regular Saint-Sulpice—I got off alone. Madame Ocelot pressed the brass key into my palm.
“For the garden,” she said. “You’ll know.”
Above ground, I was in a version of the 6th where the buildings leant together like they were sharing secrets, covered in jasmine that only bloomed at night. The Luxembourg Gardens stretched beyond their proper boundaries, all the way to Montparnasse Cemetery, creating this enormous green space where the living and dead seemed to be sharing the same twilight.
The key opened a gate I’d never seen but somehow recognised—iron worked into patterns of sleeping faces, their metal eyes permanently closed. Beyond it was the Garden of Forgotten Sleep, where every flower held dreams of Paris’s dead. Violets with the dreams of medieval scholars, roses preserving the night visions of people who’d lost their heads to the guillotine, poppies blooming with the sleeping thoughts of soldiers who never came home.
I knelt in the violet beds and they released memories like perfume. A woman walking by the Seine in 1847, burning her lover’s letter. A child playing in the Tuileries whilst his mother read under a tree that fell decades ago. An old man feeding pigeons that existed now only in the city’s collective memory.
Every violet I’d been collecting was a piece of Paris’s unconscious—fragments of the city’s dreams that I’d gathered during my sleepwalking. I was a guardian now, a keeper of forgotten spaces, collecting the city’s rejected memories.
The choice was simple: go back to my flat and my careful catalogue of impossible things, knowing now what I’d been unconsciously searching for. Or plant my own dreams in this garden, become a full citizen of hidden Paris, give up my claim to the world of reliable maps and streets that stay put.
I found a violet seed in my pocket—when had I picked that up?—and pressed it into the dark soil between two rows of sleeping dreams. The earth took it hungrily, and I felt the city’s hidden bloodstream recognise me, claim me.
When I woke up in my own bed the next morning, I had dirt under my fingernails and violet petals on my tongue. But now I understood: I wasn’t just collecting impossible artefacts any more, I was distributing them. Leaving breadcrumbs for other insomniacs—metro tickets to stations that existed only for the displaced, keys to gardens where the city kept its dreams, flowers that bloomed with memories commercial daylight couldn’t touch.
My bedside table had a new collection: postcards for strangers who would need them, matchboxes to light the way for other sleepwalkers, marbles that rolled towards hidden entrances when you put them on ordinary floors. I photographed each one, measured them, wrote down the dates—not as proof of madness now, but as a catalogue of gifts waiting for the right recipients.
Paris has always been a city built on top of itself, histories piled on histories. Now I tend the spaces between those layers, the thin places where impossible things leak through. Every night when exhaustion finally wins, I walk the hidden streets, gathering dreams and planting seeds, maintaining the secret city that exists for people who’ve learnt to navigate by feel instead of sight.
The dirt under my fingernails tastes like copper and old prayers, and I know tonight, when sleep comes, I’ll walk again through the Paris that belongs to dreamers, tending the garden where the city keeps its forgotten hopes.

