Sea monsters
The Moon and the SunSea monsters are rare marine beings whose capture by Yves de la Croix turns a natural-philosophical expedition into a struggle over what counts as animal, person, and monster. Their bodies invite inspection, but their songs, social behavior, and communication with Marie-Josèphe de la Croix undermine the categories used to confine and study them. The uncertainty is not merely scientific: classification determines whether they may be captured, dissected, or heard as witnesses.
Appearance and Observed Biology
The first sighting presents sea monsters at play in turbulent water. Sleek figures leap through the foam like dolphins, while their song silences the sailors. At the gathering Yves has sought, they twist their tails around one another and sing as they mate, their activity churning the water into froth. He observes their size, color, and number, noting that there are far fewer than the horde reported a century earlier. The hunt thus begins with evidence of both social behavior and decline, although Yves’s attention remains fixed on the opportunity to capture his quarry.
The female sea monster brought to land is long and slender, with tangled hair and golden eyes that reflect the light. Her body resists simple comparison with familiar animals: she has two tails, webbing between long fingers, sharp claws, mahogany skin, and flat, wide breasts. Ridged patterns cross her forehead and cheeks; her low, flat nose and projecting canine teeth contribute to the grotesque appearance observed by the human onlookers. Yet her eyes are also described as beautiful, and her body appears both strange and magnificently formed. The description holds fascination and repulsion together rather than resolving the creature into either one.
Yves offers a practical account of some of these features. He supposes that the creatures’ hair lets them disguise themselves among seaweed, and that they eat small fish and probably kelp. Their skin is thick and leathery, especially along the tails, which he interprets as armor against sharks, whales, and kraken. Its distribution, he argues, indicates that their principal defense is escape. These observations make the sea monsters legible as marine organisms, but they do not settle what their intelligence or social life means.
Capture and Confinement
Yves’s crew deploys a heavy net as the flagship passes through the mating group. The sea monsters are absorbed in their activity and do not notice the assault until it is underway. Yves has planned the attack around that moment of distraction; once the net is in motion, he watches his prey with deliberate composure. The expedition’s success is inseparable from the creatures’ vulnerability: the behavior that reveals their intimacy also leaves them exposed to capture.
Yves later reports that he brought two sea monsters alive to land. The male resisted until death, while the female survived. His assertion that she lacks the male’s will to freedom is his interpretation, not an established account of her wishes. In Versailles, she is kept behind the bars of the Fountain of Apollo cage. She whistles and sighs there, and later screams loudly enough that the musicians playing nearby cannot drown her out. Her confinement is therefore not a static display: the sounds she makes repeatedly interrupt the court’s efforts to present her as a manageable specimen.
Marie-Josèphe attempts to feed the captive female by hand. She succeeds in inducing her to eat, though the effort leaves her wrist sore, and she worries about the creature’s hunger when visitors crowd the gardens. The exchange gives the sea monster a need that cannot be reduced to the spectacle of her body. On another occasion, she crawls from the water crying in despair and warning as Marie-Josèphe walks bleeding toward dangerous land predators. Her warning song passes through the gardens, but no one answers. The episode gives her a perspective on danger and an attempt to communicate it, even when the humans around her fail to understand.
Dissection and the Limits of Classification
At the dissection, Yves initially argues that sea monsters are ordinary animals. He compares their muscles and bones with those of other mammals known to natural philosophy. When he opens the male’s chest, he finds lungs, a heart, and glands; the creature has neither gills nor a swim bladder and resembles a dugong. Yves concludes that its internal organs are normal for a mammal. The investigation establishes an important biological distinction from fish, but it does not uncover the singular feature the King wants.
Louis XIV is pursuing the supposed organ of immortality, and the male’s body provides no evidence that such an organ exists. Yves rejects the claim as belonging to alchemy rather than natural philosophy, grouping it with the transmutation of gold and identifying both as condemned by the Church and by scientific inquiry. The King, however, has commissioned a search for what makes the creatures unique, not merely for what they share with other mammals. The mismatch exposes competing purposes in the dissection: Yves seeks observable anatomy, while the King wants a discovery that might answer an older promise of immortality.
The creature’s status remains unsettled even after its anatomy is examined. Calling the sea monsters ordinary animals can make dissection seem permissible, but it also sits uneasily beside their demonstrated communication and social lives. In a later dispute, Louis XIV questions whether understanding another being proves it deserves recognition, joking that his cat might otherwise merit a place at court. Count Lucien de Barenton, Count de Chrétien counters that classifications have changed before and argues that the relevant test is whether the creature speaks a human language. He invokes scientific proof as a reason to let Marie-Josèphe demonstrate what she claims, rather than treating inherited labels as final.
Communication and Personhood
Marie-Josèphe’s dealings with the captive female make communication the central challenge to the word monster. Before the King, she declares that she understands the sea woman and that the sea woman understands her. She argues that the creature speaks, is intelligent, and is a woman like herself. Yves disputes her conclusion, calling the sea woman no more intelligent than a parrot. The conflict is not over the creature’s visible strangeness, which no one denies, but over what her capacity to respond should count as evidence of.
The Church’s questions impose a different standard. Pope Innocent asks whether Marie-Josèphe has discussed souls or Christian faith with the creature, or converted her. The exchange reveals that demonstrating mutual understanding does not, by itself, satisfy the religious authority’s test for personhood. Lucien’s call for a scientific demonstration and the Pope’s questions about faith thus point toward different forms of proof, with the sea woman’s own speech and understanding caught between them.
The sea monsters’ songs make that gap audible. Their mating songs first reach the sailors as an uncanny call; the captive female later cries and warns while human listeners mistake, ignore, or try to cover her sounds. Marie-Josèphe’s capacity to communicate with her offers a counterexample to the assumption that the creatures’ voices are merely animal noise. Yet the warning in the gardens goes unanswered, and the female remains confined. Recognition begins in a relationship between particular beings; it does not automatically undo the power to cage them.
Rarity and Narrative Significance
The novel frames the sea monsters as a population under pressure as well as individual captives. Yves finds far fewer at the gathering than earlier reports described, and says that the female he has brought back is one of the last. Later, Sherzad remains wary when approached by sailors: she fears nets, guns, and explosive charges used to stun her into captivity, and waits at the mouth of a cove ready to flee. Her caution gives the history of capture an ongoing consequence. Even an encounter intended to end in escape carries the memory of the methods used to take sea people prisoner.
Sea monsters are therefore more than marvelous bodies for the court, the laboratory, or the King’s ambitions. The dissection reveals mammalian anatomy but cannot answer the political and moral question of how the creatures should be treated. Their songs, paired behavior, attempts to warn, and demonstrated exchange with Marie-Josèphe press beyond the limits of a classification imposed by human observers. The decisive tension persists: the more closely the novel attends to their bodies and voices, the less adequate the word monster becomes.