Cambridge, the story's setting, is the Alien narrator’s main earthly base: a city in which he moves through Andrew Martin’s sporting, academic, and domestic worlds, and to which he returns briefly after leaving the Martin family. Its recurring places mark different phases of his occupation of Andrew’s life, from observing football with Ari to reading Andrew’s unpublished mathematical work and eventually renting a small flat before taking a job in America.

A setting of football and human company

In Cambridge, the narrator attends a match in which Cambridge United play Kettering. He has invited Gulliver to come, ostensibly so that he can keep an eye on him, but Gulliver answers sarcastically that his father knows him so well. Gulliver does not join him: the match is instead an outing for the narrator and Ari, Andrew’s closest friend. The city’s football setting therefore brings together the narrator’s effort to watch over Gulliver and his continuing contact with a friend inherited along with Andrew’s life. The narrator reads Cambridge United’s support as an attachment to failure. He regards the team as one that avoids victory and interprets the supporters’ frustration as evidence of a human preference for the familiar limits of losing over the demands of sustained success. In his account, winning is briefly pleasurable, but continued victory forces people to confront larger questions about life and death; absolute winning leaves them with nothing to do but deal with it. This is the narrator’s comic, alien analysis rather than a neutral account of the city or its supporters. The match gives Cambridge a setting in which his theories about human behavior can be tested against ordinary local loyalties.

Academic Cambridge

Cambridge also gathers the narrator into Andrew’s intellectual world. An hour after an earlier encounter with Maggie, he is in Andrew’s office for the first time since deleting the email to Daniel Russell. With more time than on his previous visit, he takes in the books lining every wall, arranged so that a person looking at Andrew from any direction would see a book. Their subjects include number systems, hyperbolic geometry, hexagonal tessellation, and logarithmic spirals and the golden mean. The room’s arrangement makes Andrew’s professional identity part of its physical environment. Among the volumes, the narrator notices Andrew’s own thin book, The Zeta Function, marked as an uncorrected proof copy. He locks the door, sits in Andrew’s chair, and reads every word. The office is thus more than a generic academic interior: it is where the narrator privately encounters the work associated with Andrew’s mathematical achievement. Cambridge’s university life gives that discovery a concrete location, connecting the city’s scholarly surroundings to the proof and to the narrator’s decisions about what should happen to it. The college café offers a contrasting academic setting. There, the narrator has grapefruit juice while Ari drinks sweet coffee and eats beef-flavoured crisps. Asked how things went, the narrator says he educated people about alien life by discussing Drake’s Equation. The exchange places extraordinary subject matter inside a mundane meeting between friends: the narrator can speak about alien life in Cambridge, but the conversation still takes the familiar form of a check-in over refreshments. His descriptions also register his attention to Ari’s physical presence, including his attempt not to catch Ari’s cow-scented breath.

A temporary home and departure

After the later rupture in the Martin household, Cambridge remains the place where the narrator first settles outside the family home. He decides to stay as Andrew Martin, in accordance with what Isobel wants: she wishes to avoid fuss, a scandal, a missing-person inquiry, or a funeral. He moves out, rents a small flat in Cambridge for a while, and applies for jobs elsewhere in the world. The city is therefore a transitional home rather than a final destination, allowing him to leave the household without immediately vanishing from Andrew’s life. The transition ends when he obtains a teaching job at Stanford University in California. There he keeps his mathematical work within limits, avoiding advances that could lead to technological progress, and does not disclose a proof of the Riemann hypothesis; instead, he argues to his peers that such a proof is inherently impossible. Cambridge is the point of departure for this restraint, not its endpoint. In the novel’s geography, the city gathers the life he has taken on—friends, football, academic work, and the Martin family—before he carries that life elsewhere under the name Andrew Martin.