The narrator's friendship with Ali

Ari is the closest friend of the original Andrew Martin and, at first, a friend the alien narrator understands mainly as part of the life he has taken over. Their relationship changes as Ari’s concern, humor, and willingness to help become more than details to observe: Andrew Martin (the alien narrator) comes to trust him, tells him a truth he expects him not to believe, and considers asking him to protect Isobel Martin and Gulliver. Ari’s eventual murder turns that emerging friendship into a direct personal loss and exposes the danger surrounding the narrator’s new attachments.

Inherited Friendship and First Impressions

Ari enters the narrator’s account as the original Andrew Martin’s closest friend. That description carries an important qualification: the narrator has heard from Isobel Martin that the man he is impersonating did not really have friends, only acquaintances. The mismatch leaves the narrator with an inherited label but no assurance that he understands the intimacy it names. At first, friendship is something he has to interpret from the outside, rather than a bond he can assume he knows how to inhabit.

Ari is Professor Arirumadhi Arasaratham, an expert in theoretical physics. The narrator describes him with amused attention to his build, likening his roundness to someone who might want not only to watch football but become part of it. At a Cambridge United match against Kettering, the two are together without Gulliver, whom Andrew had invited partly so he could keep an eye on him. The occasion makes their companionship ordinary and specific: they watch a team the narrator sees as embodying failure, while Ari eats crisps and opens a conversation about how Andrew is doing.

Ari couches his concern in jokes. He admits that he had been worried, then immediately softens the admission into mild concern and makes light of the possibility that Andrew has had a breakdown, invoking Nash. The narrator reads the humor as a way for human men to conceal emotion. Yet behind the banter is a friend checking on him; Ari’s levity does not cancel his attention but gives it a socially manageable form.

Trust Beyond the Assumed Role

Later, Ari tells Andrew that he seems to be changing and becoming a man of honor. He urges him not to damage his relationship with Isobel Martin. The observation shows Ari responding to a change he can see, although he does not know its true cause. Andrew, in turn, looks at Ari for a long time and judges him a good man whom he can trust. That judgment marks a shift: Ari is no longer merely the closest friend of the person whose identity the narrator has assumed; he has become someone to whom the narrator considers entrusting a dangerous truth.

Andrew refers back to an earlier occasion at the college café, when he had a migraine and failed to tell Ari what he intended to say. Now he explains that he comes from another planet, solar system, and galaxy. Ari laughs loudly and answers as though the disclosure were a science-fiction joke, suggesting that Andrew should phone home and treating the distance involved as part of the joke. When Andrew clarifies that his home is much farther away than Andromeda, Ari still does not accept the claim as literal. The exchange leaves the secret unrevealed to Ari in practical terms, but it reveals how far Andrew is willing to risk being misunderstood in order to speak honestly.

Ari’s disbelief also sharpens Andrew’s sense of isolation. He concludes that if Ari will not believe him, Isobel Martin is unlikely to do so either, while imagining that Gulliver might one day be told the truth. He recognizes the trap this creates: he expects to have to keep lying. The failed confession does not make Ari a confidant of the alien identity, but it tests the friendship without destroying it. Andrew has spoken plainly; Ari has responded with laughter rather than fear or rejection, because he understands the disclosure as a joke.

Practical Loyalty and a Possible Refuge

Even while accepting that Ari does not believe his account, Andrew asks whether, if a need arose, Ari would let Isobel Martin and Gulliver stay at his house. The request is concrete, involving the safety and shelter of the two people Andrew has come to care about. Ari agrees readily. His answer does not depend on understanding the threat Andrew faces, and the passage gives no indication that Andrew explains it. The offer therefore measures friendship through action rather than shared knowledge: Ari is prepared to help when asked, despite not knowing why the help might matter.

That willingness contrasts with Andrew’s growing awareness that he cannot freely tell the truth about himself. Ari can be trusted with a favor, but not persuaded of the secret that makes the favor seem necessary. Their bond consequently remains both genuine and limited: Andrew recognizes Ari’s goodness and can ask him to protect his family, yet he cannot make Ari see the danger as he sees it. The gap between them is not a failure of affection so much as a consequence of the narrator’s concealed identity and the extraordinary claim he cannot substantiate to his friend.

Death and the Meaning of the Friendship

When a disturbing encounter leaves Andrew with a dark thought, he stands, takes out his phone, and calls Ari. A woman answers and tells him that Ari is dead. The abrupt news interrupts a relationship that had just acquired a future-oriented possibility: Ari might one day shelter Isobel Martin and Gulliver. The offer remains a remembered act of trust, but its practical promise is cut off before the evidence shows it being used.

Andrew’s response makes clear that Ari’s death is not merely another piece of information about the danger around him. When he confronts the person responsible and asks whether Ari was killed, the answer is yes. Andrew protests that Ari did not know the Riemann hypothesis had been proved. His objection distinguishes Ari from those who might possess the knowledge the attackers seek: Ari’s connection to Andrew made him vulnerable, though he lacked the crucial information. The friendship thus exposes how indiscriminately the threat can reach beyond the people who understand its purpose.

Ari’s role in the relationship is defined by a sequence of ordinary gestures and a final absence: checking on Andrew at a football match, joking to cover concern, listening without believing, agreeing to provide a home for Isobel Martin and Gulliver, and then being reported dead. For the alien narrator, the bond begins as part of the human life he must imitate, but becomes evidence that he can recognize goodness and place trust in another person. Ari never learns who Andrew really is. His importance lies instead in what Andrew risks telling him, what he is willing to do for Andrew’s family, and the grief and anger his death brings into the narrator’s understanding of friendship.