Piranesi

What's inside (8 sections)

1. The House and how Piranesi lives in it
2. The Other and the Great and Secret Knowledge
3. Chalk messages and the stranger called 16
4. The Prophet and the missing pages
5. Who Piranesi really was
6. The flood and going back
7. Key takeaways
8. FAQ

I picked up Piranesi because I missed Susanna Clarke and I wanted something short. Her first book, Jonathan Strange and Mr Norrell, is huge and full of footnotes and London magicians, and then she went quiet for sixteen years. When I heard the follow up was only around two hundred and seventy pages and mostly about one man in an empty building, I was confused. It starts small and then it gets stranger and sadder, and by the end I was reading slowly because I did not want the House to close behind me.

The book is written as Piranesi's journal. He dates entries by his own system at first, then later you see other dates slip in. He is polite on the page. He lists what he ate, where the tides were, which halls he visited, who he spoke to. That plain list keeping is what makes the mystery work. You trust him even when he clearly does not have the full story, and you start noticing the gaps before he does.

The House and how Piranesi lives in it

Piranesi lives in the House. That word is always capitalized in his mind, because for him the House is the world. It is an endless set of stone halls and vestibules and staircases, lined with statues. Every hall has figures in niches and on plinths. Fauns and kings and gardeners and women carrying honeycombs and ships. He knows many of them by sight and has favorites he visits the way you might visit friends.

An ocean is caught inside the building. Tides roar up the lower stairs and flood whole rooms, then fall back and leave seaweed and fish behind. Higher up, above the reach of the water, there are halls full of mist and rain and birds. Gulls nest there. Clouds move through the upper stories. Piranesi tracks all of this the way a farmer tracks weather. He knows which stairs will be wet by afternoon, which hall will be loud with water, where gulls will be nesting in spring.

He is good at living there. He catches fish, dries seaweed for fuel and for sandals and bags, gathers mussels, collects rainwater in stone basins. He knows how to make a fire without much smoke and how to keep his blanket dry. He sleeps in different halls depending on the season and the tides. One small thing I liked here is how practical Clarke keeps it. She does not wave away hunger or cold or sore feet. Piranesi worries about having enough dried fish for winter and about mildew.

He is not quite alone. There are thirteen dead people in the House, skeletons lying where they died years ago. Piranesi does not fear them. He treats them with care. He brings them water and flowers and sea grasses. He has given them names based on how he found them, like the Folded-Up Child. He sits with them sometimes. That sounds odd, but on the page it feels kind rather than creepy. He thinks his work is to witness the beauty of the House and to be polite to the dead who cannot tend themselves.

He also watches birds and writes down what the statues look like in different light. He believes the House is kind and that it provides for him. When he finds extra fish in a net, he thanks the House. At the start this reads as sweet. Later it reads as something else, because you begin to ask why a man in his thirties is so content with so little company and why he cannot remember how he got there.

The Other and the Great and Secret Knowledge

Twice a week Piranesi meets with the only other living person he knows. He calls this man the Other. The Other is older, well dressed, serious, often impatient. He does not live in the House the way Piranesi does. He visits for an hour at a time, brings supplies from outside, and then leaves. The supplies are strange against the stone background. Trainers, a good coat, vitamin pills, a torch with batteries, tinned food, a sleeping bag. Piranesi is grateful for them in a way that made me uncomfortable. He thanks the Other again and again, while the Other barely listens.

The Other says they are working together on important research. He is looking for a Great and Secret Knowledge hidden somewhere in the House, old wisdom left by people who knew how to move between worlds. He asks Piranesi to map halls, to watch tides, to look for signs, to take notes. Piranesi does all of it faithfully. He likes having a task and he likes pleasing the Other.

But small details do not line up. The Other says odd things about memory. When Piranesi suggests they might stop the search and just live in the House, the Other says they have had this talk before and warns him that the House eats memory.

There is also control in how the Other talks. He tells Piranesi what to write and what not to ask. He tells him not to talk to anyone else. He tells him there may be another person in the House, a sixteenth person besides Piranesi and the fifteen others Piranesi counts among the living and the dead, and that this person is dangerous. He says this sixteenth person, who he calls 16, will confuse Piranesi and make him lose his mind. Piranesi should hide if he sees signs of 16. Piranesi agrees at first because he trusts the Other. That trust is painful to read once you see where it leads.

This part can feel slow if you want plot to move fast. Long stretches are just Piranesi fishing and walking and describing statues while the Other lectures. Still, Clarke needs that slowness. She is showing you a friendship that is not really a friendship. The Other needs Piranesi docile and helpful. Piranesi needs the Other to be a friend. The gap between those needs is the whole book.

Chalk messages and the stranger called 16

The change comes with chalk. Piranesi starts finding messages written on pavements in the halls. Someone else is in the House and is trying to talk. The handwriting is not the Other's. The tone is urgent. Do not trust the Other. You are in danger. Meet me. Piranesi is thrilled and frightened at once. For years he thought there were only two living people in the world. Now there is a third.

He tells the Other right away, which feels like a mistake even as he does it. The Other turns cold and angry. He says again that 16 will destroy Piranesi's mind with lies. He forbids Piranesi to answer the messages or to go to the meeting places named in them. He tells him to keep working and to stay away from certain halls on certain days.

Piranesi tries to obey. He really does. He skips one meeting and feels guilty about it for pages. But curiosity wins, and so does basic kindness. The messages keep coming, left in places only someone who knows the tides could reach. Whoever is writing them knows the House almost as well as he does. That detail matters to him. The Other brags about knowledge but cannot fish and hates the wet stairs. This new person moves cleanly through the same halls Piranesi uses.

When they finally cross paths without quite meeting, Piranesi learns that 16 is a woman named Raphael. She leaves practical notes about tides and supplies. She warns him that the Other has been lying about who he is and about what the House is. Piranesi does not read one of her longer letters at first because he is afraid of what the Other said, that reading it will make him ill. That hesitation is very human. He has been told for years that doubt equals sickness.

I admired how Clarke stages this without a chase or a fight. It is all notes missed by minutes, footprints in wet dust, a coat left on a statue, fish taken from a store. The tension comes from Piranesi deciding whom to believe. He has lived on gratitude for so long that questioning the Other feels like bad manners. Watching him learn to keep a secret from the Other is like watching someone learn to lock a door for the first time.

A fair criticism here is that Raphael stays blurry for a long stretch. We get her handwriting before we get her face, and even later she can feel more like a rescuer than a full person. Clarke keeps her at a distance so Piranesi can stay central, but I wanted more of her humor and anger earlier. The book asks you to care about a friendship mostly carried out on stone floors in chalk dust, and for some readers that will feel too quiet.

The Prophet and the missing pages

Halfway through, Piranesi meets another old man in the House, someone he calls the Prophet. The Prophet is thin and wild and speaks in riddles about rivers and ideas. He says the House is a sort of side channel where old thoughts and lost worlds wash up when they flow out of other places. He says the Other was once his student and stole his work about how to enter such places. He says the search for the Great and Secret Knowledge is empty, that the House is valuable because it exists, not because it hides a prize to be taken.

The Prophet also calls the Other by his real name, Ketterley. That name hits Piranesi hard because he has seen it before in his own journals and then forgotten. When he goes back to check, he finds pages torn out and entries cut away. Someone has removed every note about Ketterley. His journals were supposed to be his memory. If they were cut, what else was taken?

This is where the book turns from odd and lovely to frightening. Piranesi starts comparing his handwriting across years. He sees that he once dated entries by normal calendar years and then stopped. He sees lists of supplies in a different hand. He finds a note in his own writing that says he is losing his mind and that he hates Ketterley and wants to kill him before he forgets why. It does not sound like the gentle man we met at the start. It sounds like someone who knew he was being erased and tried to leave a warning to himself.

Clarke handles memory loss without making it a puzzle trick. Piranesi does not suddenly become a detective. He stays himself, careful and polite, but he starts testing things. He checks whether the Other's stories about tides match what he knows from living there. They do not. He begins to hide his real journal and to show the Other a shorter version. That small act of deception costs him a lot. He apologizes to the House in his entries, as if lying to a guest insults his host.

If there is a weak spot, it is that the Prophet can sound like a mouthpiece. His speeches about ideas flowing like water are beautiful, but they go on, and they explain a lot at once after long chapters of withholding. On my first read I welcomed the clarity. On reflection I think Clarke gives him a little too much to say. He names the whole system while Piranesi is still catching up, which shifts the weight from feeling to lecture for twenty pages or so. It passes, but you notice it.

Who Piranesi really was

The truth comes out in pieces, from Raphael's notes and from the damaged journals and finally from Piranesi's own returning memory. He was not born in the House. He was Matthew Rose Sorensen, a young man in London who worked with art and writing and who went to interview a man named Valentine Ketterley about a vanished thinker named Laurence Arne-Sayles.

Arne-Sayles, the Prophet, had gathered followers in the nineteen eighties around ideas about other worlds and hidden knowledge. People around him disappeared. One was a student in Italy. Others were friends who took part in rites with old objects. Ketterley learned part of the method for stepping into the House and kept it for himself. When Matthew came asking questions, Ketterley used the rite on him as a sort of trap and left him in the House to fade.

Left alone, Matthew forgot London word by word. He forgot dates, then names, then his own past, until only habits of kindness were left. He learned to fish. He learned the tides. He gave himself, or accepted from Ketterley, a new name taken from an artist famous for drawings of prisons and vast stairs, Piranesi. Ketterley mocked him with it and also needed him. A man who remembers nothing is easy to send into flooded halls to look for treasure.

Raphael's part in this is more grounded than I expected. She is not a mage. She is a researcher looking into missing people connected to Arne-Sayles and Ketterley. An old follower told her how the crossing works, partly out of spite toward Ketterley. She came into the House to find evidence and found Piranesi instead. Her notes change once she understands he is a victim, not a guard. She stops treating him as 16, a threat, and starts treating him as Matthew, a missing person.

This reveal could have felt cheap, the classic lost memory twist, but Clarke earns it because she shows the cost. Piranesi never snaps straight back to being Matthew. He grieves for Piranesi even as Matthew returns. He worries that Matthew was careless and proud and that Piranesi, for all his limits, was kinder and paid closer attention. When Raphael offers him a way out, he is not sure he wants it. The House damaged him, but it also taught him how to live slowly and thankfully. London, with its noise and speed and paperwork, sounds to him like another kind of flood.

I should note one thing that may bother some readers. The London backstory is told quickly, through journals and Raphael's summary. If you love police procedure or cult history, you may find it thin. Clarke clearly cares more about what forgetting feels like than about who filed which report. I made peace with that because the House chapters are so strong, but readers who want every London thread tied will feel shortchanged.

The flood and going back

Everything gathers toward a great tide, the kind Piranesi has been predicting from foam marks and gull behavior for weeks. The lower halls will fill to the ceiling. The stairs will run like rivers. Anyone caught low will drown. Raphael knows the date from outside records. Ketterley knows it too and plans to use the confusion to get rid of both of them.

Piranesi stops obeying Ketterley in the open now. He follows him through high halls, carrying fish and a torch, leaving marks for Raphael to follow. When they meet face to face, Ketterley drops the mask of the helpful scholar. He threatens and shouts and pulls a gun, which looks absurd and terrible among statues. Piranesi kicks the gun aside on wet stone and keeps moving up. Raphael climbs with him, calling out halls the way he taught her in notes. The water takes Ketterley. It is not framed as triumph. Piranesi later tends to Ketterley's body the way he tended the other dead. That choice says more about him than any speech could.

After the water falls, Raphael explains the way back and Piranesi steps through into London. Clarke does not make this a joyful homecoming. Matthew is dazed by traffic and mirrors and too many people talking at once. He is questioned by police. He sees his old flat and his old papers. He keeps noticing the sky and missing the statues. He keeps listening for tides in plumbing.

What I found moving is that he does not choose one life and discard the other. He keeps visiting the House, with Raphael's help, to tend the dead and to sit in halls he loves. He brings back small skills, like patience with weather and attention to birds, and lets them shape his London days. He says near the end that he is no longer quite Matthew and no longer quite Piranesi, and that he will have to make a third person from what is left. That line stayed with me because it refuses easy healing. He was harmed and he was also formed by the place where he was harmed, and both facts have to be carried.

Is the ending too gentle? Maybe. Ketterley drowns in a flood rather than facing a court. The cult history stays half told. Raphael's future is sketched, not settled. Some readers will want sharper justice and clearer answers about how the crossings work and who else knew. I wanted a little more time with Raphael after the return, a few scenes of her and Matthew learning how to be friends outside danger. Clarke gives us tenderness instead of procedure, and a short book instead of a long one.

Still, I keep thinking about mornings in the House, the way Piranesi describes light on a particular statue or the sound of water in a stairwell, and how those passages taught me to look slower at my own rooms. I finished the book in two sittings and then walked around my flat naming what I saw, which felt silly and also good. Few fantasies leave me with that quiet after them. This one did, and I have pressed it on friends who think they do not like fantasy, telling them it is really a mystery about kindness and memory wearing a strange building like a coat.

FAQ

Is Piranesi part of a series?

No. It is a standalone novel published in 2020, separate from Jonathan Strange and Mr Norrell, with no sequel.

Who is the Other in the House?

He is Dr Valentine Ketterley, a former student of Arne-Sayles who trapped Matthew in the House and posed as a friend.

Is Piranesi only for fantasy readers?

No. Readers who enjoy mysteries about memory and identity often like it, though those wanting fast action may find it slow.