Seimei Ko

The heart-fruit is a living product of the Black Garden and the decisive toll used by Jonathan Heights to pass through the Arch of Khokorron. Its importance lies in the contradiction it embodies: it is presented as a source of life, yet it can be obtained only through sacrifice, corrupts the person who harvests it, and is finally consumed by a passage that converts knowledge and vitality into payment.

Origin and Intended Use

Jonathan Heights knows of the fruit through the secretive Sisters of the Immaculate Thorns, who safeguard the Black Garden beneath Ukaresh. He has witnessed what the Sisters can provide and regards the fruit of life as the surest means of paying for passage through the Arch of Khokorron. Other forms of payment exist, but Jonathan considers the fruit more reliable than alternatives. Because he is a man, he cannot speak to the Sisters himself; Eleanor McAvey, by contrast, will be welcomed, making her access essential to his plan.

The fruit is not sought for ordinary nourishment or healing. Jonathan needs it because the Arch demands a toll that cannot be paid twice: the passage takes something from the traveler at the moment when ignorance becomes knowledge. A life is another possible payment, but Jonathan intends to preserve the lives of his companions and use the unique vitality contained in the fruit instead. The object therefore enters the story as both expedition provision and moral liability, a carefully planned resource whose acquisition exposes the danger of treating forbidden knowledge as equipment.

Harvest in the Pits

The Keeper of the Pits leads Jonathan and Eleanor through the repeating arches of Ukaresh to the place of purchase. At the bottom of a pit, a massive near-cat remains frozen in place. When the Keeper hums another note, the walls appear to shrink through a distortion of perspective, bringing the sacrifice within reach without visibly moving the stone around it.

Jonathan asks Eleanor to harvest the creature. She agrees with startling delight and raises her dagger, but the act is incomprehensible to him because it draws on secrets forbidden to him: blood, crawling vines, immense leaves, roots reaching into the world, and the predatory thirst of growing things. The sacrifice ends with a pool of blood and a single fruit in Eleanor’s hand.

The object is red, smooth, and heartbeat-like. A translucent lacework of hide and fur encloses it, giving it the appearance of a grotesque paper lantern, while each contraction radiates an unmistakable vitality. Its form makes life visibly material and almost animal: the fruit pulses, seems wet with blood, and presents vitality not as an abstract blessing but as a contained, beating substance.

Eleanor immediately laughs and begins stripping away the husk, apparently intending to bite into the fruit herself. Jonathan stops her, takes it from her hand, and finds that the act has transformed her. Her mind has already been damaged by the Black Garden’s knowledge, and possession of the fruit drives her into a feral state. She attacks him with a clawed hand, while the Keeper remains nearby, ready to spring. Jonathan must evade both the Keeper and Eleanor as dark vines press at the edge of his perception.

Conflict Between Jonathan and Eleanor

The heart-fruit turns the uneasy expeditionary relationship between Jonathan Heights and Eleanor McAvey into open physical conflict. Jonathan’s stated purpose is to secure the object for survival and passage, but his handling of it is possessive from the beginning: he takes it from Eleanor before she can consume it and later keeps it hidden from her. Eleanor’s reaction is not merely a dispute over property. The Garden’s knowledge has altered her judgment, and the fruit intensifies an already dangerous appetite for what the Garden can reveal.

Jonathan answers the attack with sunlight, allowing it to burst from within him as a scorching force that drives back the dark roots and the hunger of the growing things. Afterward, he retains the fruit and admits to Antomine that he has obtained what he needed. He wraps it in paper and places it in the secure compartment of his safe, relying on a hidden compartment whose twisted perspective makes it difficult to access. His precautions are directed especially against Eleanor, whom he believes may try to repossess the fruit rather than accept that it is gone.

The concealment does not restore trust. Eleanor later appears with wild, reddened eyes and remains hostile toward Jonathan. The fruit has made the underlying structure of their alliance visible: Jonathan treats Eleanor as the person capable of opening a forbidden resource, while Eleanor refuses to remain merely the instrument of his plan. The object becomes the material proof of their mutual suspicion, and its custody matters more to Jonathan than the preservation of their former cooperation.

Toll of the Arch of Khokorron

When the Endeavor reaches the Arch of Khokorron, the machinery opens into a tunnel several miles in diameter, lined with burning lights. Red illumination passes through the airship and its passengers, assembling visions that may not exist and bringing with it a cold, rigid presence. The passage produces a strange condition in which the travelers feel both familiarity and unfamiliarity, as though the instant of becoming ignorant or knowledgeable is itself being removed.

Jonathan understands that the Arch collects the knowledge toll at the moment of passage. He reaches into his pocket for the heart-fruit, only to discover that it has vanished. He instantly suspects Eleanor, sees her retreating toward her room, and pursues her. The missing object changes the scene from ritual preparation to emergency seizure: Jonathan tears Eleanor from hiding, grips her by the throat, and finds her holding the fruit halfway to her lips.

Eleanor tries to bite it, but Jonathan restrains her and forces the fruit from her hand. As the red light gathers around him, he bites the fruit repeatedly, swallowing it in haste. Its taste is associated with dire fortitude and monstrous vitality, yet Jonathan perceives that it is more than stored strength: the fruit contains an entire life. The Arch takes that life almost immediately, drawing away the power before its effects can fully manifest.

The toll is therefore both fulfilled and emptied. The heart-fruit does not grant Jonathan a lasting transformation, nor does it deliver the complete vitality promised by its appearance. Its power and meaning are stolen by the Arch, leaving only the taste of blood on his lips and tongue. The object succeeds as payment precisely by being consumed as a life, while its intended medicinal or empowering potential remains unrealized.

Material and Narrative Significance

The heart-fruit connects the expedition’s economy of acquisition with its supernatural economy of sacrifice. Elsewhere, Jonathan organizes trains, cargo, steel, fuel equipment, food, and water; metal is exchanged for supplies, and gold later returns with the Endeavor as immense public wealth. The fruit belongs to the same larger pattern of extraction, but it makes the cost impossible to disguise. It is harvested from a killed creature, guarded as private property, contested by two expedition members, and finally surrendered to an ancient mechanism that converts life into access.

Its beating form also contrasts with the expedition’s manufactured objects. Portable distillation equipment, lifting-gas separators, searchlights, and crew-served zint guns are valued because they can be loaded, transported, and used. The heart-fruit appears portable as well, wrapped in paper and placed in a safe, but its living pulse resists that treatment. It is an object only temporarily: beneath the wrapping it remains a life, a secret, and a threat to the person who possesses it.

The fruit’s final function reinforces the book’s recurring conflict between knowledge and human control. Jonathan believes that sufficient preparation, experience, and sunlight can make the eastern unknown traversable. Yet the heart-fruit cannot be reduced to a tool. Eleanor’s harvest unleashes corruption; Jonathan’s possession provokes violence; and the Arch takes the fruit according to a rule neither character can negotiate. By the time the Endeavor returns to Beacon with gold and other eastern spoils, the heart-fruit has disappeared into the tolling machinery, leaving no public treasure behind—only the blood-taste of a life spent to keep the expedition moving eastward.