The Arm of the Starfish

Lore & Background

The story centers on 17-year-old marine biology student Adam Eddington, who travels to the remote island Gaea for a summer job with Dr. Calvin O'Keefe. Before leaving JFK airport, Adam is approached by Carolyn 'Kali' Cutter, who warns him against Canon Tallis, a clergyman accompanying 12-year-old Polly O'Keefe. Bad weather and mysterious dangers derail their plans, and Adam finds himself shepherding Polly on a flight from Madrid to Lisbon, where she seemingly disappears from the airplane while it is on the ground in Lisbon.

Reader's Guide

The novel introduces the O'Keefe family, including Meg Murry O'Keefe and Calvin O'Keefe, characters from A Wrinkle in Time. It explores ethical dilemmas as Adam is forced to choose between factions with competing interests in Dr. O'Keefe's organ regeneration research. The book's reception includes a Kirkus Reviews note that the story weakens as conflict becomes more pronounced, while Robert Hood in The New York Times called it 'tense, tricky, well-plotted.'

Did You Know?

• The novel features a dolphin named Macrina, after a 4th-century Cappadocian ascetic.
• Many characters are named after Biblical or religious figures, including Canon Tallis, named after composer Thomas Tallis.
• Polly O'Keefe's fi

Genre & Central Conflict

Published in 1965, The Arm of the Starfish occupies a distinctive space between science fiction and the mystery-thriller genre. Its central premise involves cutting-edge research into organ and limb regeneration, conducted by marine biologist Dr. O'Keefe on the isolated island of Gaea, off the Portuguese coast. Two rival factions, each driven by different but equally urgent motivations, seek to control or exploit this work. The story is told through the eyes of Adam Eddington, a 16-year-old marine biology student dispatched to Gaea for a summer position. His quiet academic life shatters when 12-year-old Poly O'Keefe vanishes during a short flight from Madrid to Lisbon, and the crew insists she was never aboard. From that point, Adam is swept into a high-stakes game of kidnapping, espionage, and shifting loyalties, one that ultimately demands he choose between two morally complex sides and confront the true cost of compromise.

The O'Keefe Family Across Generations

The Arm of the Starfish functions as a generational sequel to A Wrinkle in Time, set roughly a decade after the events of that 1962 novel. The O'Keefe household—Calvin, Meg, and their seven children—has grown into a large, close-knit family. Meg, who was an awkward teenager in the earlier book, is now a tall woman of striking beauty, working as a scientist and mathematician without a formal doctorate while also managing a large household. Calvin, once a neglected 14-year-old among eleven siblings, has become a devoted father and former ambassador. Their eldest daughter, Polyhymnia 'Poly' O'Keefe, is 12, red-haired, and multilingual, speaking English, Spanish, German, Portuguese, Russian, and Gaean. She was named after the Greek muse of sacred music by Canon Tallis. The family's guiding ethic—caring for 'the fall of the sparrow,' even the seemingly insignificant—forms the moral backbone against which the novel's antagonists are measured.

Adam Eddington & the Ethics of Compromise

Adam Eddington is the novel's sole protagonist: a 16-year-old biology major who has spent summers interning at Woods Hole, Massachusetts, before being sent to work with Dr. O'Keefe. Intelligent, principled, and a touch naive, he appears only once in the O'Keefe series, though he later surfaces in the Austin family novels A Ring of Endless Light and Troubling a Star. His central struggle is not one of physical survival but of moral navigation. Two factions want O'Keefe's regeneration research, and the O'Keefes recruit Adam as a double agent, asking him to court Kali Cutter and feed her father Typhon fake documents while smuggling the genuine papers to trusted contacts in Lisbon. The scheme collapses when Kali claims she wants protection from her own father, making it nearly impossible for Adam to pass anything. Joshua Archer's fatal shooting and the revelation that Kali was always acting on Typhon's behalf expose how easily trust is manufactured and weaponized.

Canon Tallis & the Illusion of Trust

Canon John 'Tom' Tallis is among the novel's most memorable figures. A bald, eyebrowless Episcopal canon, he lost his hair while withstanding torture during the Korean War. Brusque, incisive, and by L'Engle's own standard not at all pious, he defies every conventional image of a clergyman and initially strikes Adam as something sinister. Nicknamed after the composer Thomas Tallis, he navigates the treacherous currents of international intrigue with surprising competence, though not without missteps. He is the one who bestows the name Polyhymnia on the O'Keefes' eldest daughter, an act so unusual that the family never permits him to name another child. Tallis reappears in Dragons in the Waters and in The Young Unicorns, where he is attached to St. John the Divine in New York City—the same cathedral where L'Engle herself served as writer in residence for many years. His presence reinforces the novel's insistence that outward appearance is the least reliable window into a person's true character.