The Coexisting Identities of Piranesi and Matthew Rose Sorensen

The Coexisting Identities of Piranesi and Matthew Rose Sorensen is the novel’s final account of a self that contains two identities without making them interchangeable. Piranesi recognizes Matthew as present within him, yet asleep and unable to supply his mind or memories. Back in the ordinary world, Piranesi remains alongside that absent-seeming Matthew, reconstructing his history from journals and belongings while continuing to understand himself as the House’s beloved child.

Identity and Recognition

The coexistence first appears not as a settled theory but as an explanation for involuntary grief. After a day of emotional excess, Piranesi wakes exhausted and goes to the Ninth Vestibule for seaweed and mussels. He feels empty of anger, yet sobs escape him. He does not attribute those cries to the self he knows as Piranesi: he thinks Matthew Rose Sorensen is unconscious somewhere inside him, and that the sounds belong to Matthew’s distress.

Piranesi imagines the circumstances of that distress through what he has learned. Matthew had been alone with his enemy and suffered beyond what he could bear; he had torn up his own written description of his enslavement and scattered the pieces in the Eighty-Eighth Western Hall. The House, in mercy, had put him to sleep and placed him inside Piranesi. Matthew’s name, spelled in pebbles in the Twenty-Fourth Vestibule, and the revelation of what the Other had done stirred him uneasily. Piranesi fears that if Matthew fully awakens, his anguish will begin again.

The distinction is intimate rather than absolute. Piranesi touches his chest and reassures Matthew that he is safe, asking him to sleep while promising to care for them both. He believes Matthew falls asleep again. The gesture makes bodily closeness the evidence of a divided inner life: Matthew is not gone, but neither is he available as a second, speaking consciousness.

Journals and the Reinterpretation of the Past

Reading the old journals changes Piranesi’s understanding of both the records and himself. He had once thought himself mad for writing entries about Giussani, Ovenden, D’Agostino, and James Ritter. He now concludes that Matthew wrote them in a different world, under different rules, circumstances, and conditions. The journals’ disturbing contents no longer prove that Piranesi was insane; as far as he can tell, Matthew was in his right mind when he made those records, and neither of them had been mad.

That reinterpretation establishes a relationship between the two identities without collapsing their histories into one. Piranesi can read Matthew’s past and acknowledge its authority while recognizing that it belongs to a different life and world. Memory is not simply restored as a complete account of Matthew’s former self: the journals make a history accessible, but they do not give Piranesi direct possession of Matthew’s mind or memories.

The Boundary Between Them

When Sarah Raphael asks whether Matthew is present, Piranesi confirms that Matthew’s feet and body are there, then draws a careful distinction: he does not have Matthew’s mind or memories. Matthew is here, he says, but asleep and fine; Sarah need not worry. Her response contrasts with the Other’s earlier contentiousness: she does not argue with Piranesi’s account. When she asks who he is if he is not Matthew, Piranesi answers, “I am the Beloved Child of the House.”

The answer does not deny Matthew’s bodily presence. It names the identity through which Piranesi understands himself, even as he acknowledges the person contained within him. His reassurance to Sarah and his response to Matthew’s imagined distress express the same position: care can cross the boundary between them without pretending that their minds and memories are shared.

Life in the Ordinary World

After returning to the ordinary world, Piranesi tells people what he told Jamie Askill: he had been in a house with many rooms, where the sea swept through and sometimes over him, but he was always saved. Matthew’s family and friends interpret this as an account of mental breakdown from the inside. They believe they have Matthew back because a man with his face, voice, and gestures has returned to them. Their explanation is reassuring to them, but it does not capture Piranesi’s account of who has returned.

The visible signs of Matthew’s former life are present, while Piranesi’s identity persists within that life. He no longer looks as he did in the House: the coral beads and fishbones are gone from his hair, which is clean and styled, and he is clean-shaven. He wears clothes retrieved from storage by Matthew’s sisters. The Sorensens’ carefully maintained collection included more than a dozen suits, a surprising number given Matthew’s modest income. Piranesi recognizes a shared attachment to clothes—he had often written about Dr Ketterley’s clothes and his own ragged garments—but says that he himself cares little about them. The resemblance is real, yet not sufficient to make the two identities identical.

Matthew’s missing journals, recovered from storage, become the most important of the returned possessions. They cover his life from June 2000, when he was an undergraduate, through December 2011. Piranesi is getting rid of most of Matthew’s other belongings: he cannot bear to keep so many possessions and repeatedly finds himself thinking that he does not need them. Yet the journals are different. Piranesi is always with him, while Matthew reaches him only in hints and shadows, assembled from objects, other people’s accounts, and the written record. Without the journals, he says, he would be all at sea.

A Shared Future Without Merger

Piranesi remembers how the ordinary world works, more or less: what Manchester is, what the police are, how to use a smartphone, and how to pay with money. The last remains strange and artificial to him. He imagines that Piranesi would prefer direct exchange—giving someone what they need and receiving what is needed in return—but the self who is not Piranesi, or not only Piranesi, understands that this would not work well in practice. The passage makes coexistence a daily negotiation as well as an identity claim: the House-shaped habits remain, but they now meet knowledge of ordinary social arrangements.

The two identities also converge in a chosen project. Piranesi decides to write a book about Laurence Arne-Sayles, something Matthew wanted to do and that Piranesi wants to do as well. His claim to know Arne-Sayles’s work better than anyone else connects the life documented in Matthew’s journals with the first-person self who has survived the House. This shared purpose does not restore Matthew’s memories or settle the identities into one. It gives Piranesi a way to act in the world as himself while carrying a history that is only partly his to remember.