Mouse

Mice occupy two sharply different roles in the book: they are among the small creatures housed and studied at the Academy of Deeper Learning, and they become the experimental subjects through which Hohsalle pursues a possible treatment for memory loss. One mouse’s return to a learned task gives his research a concrete result, while the condition he hopes to address carries a private and inherited weight among Otawalle’s sacred lineages.

At the Academy

The School of Living Creatures studies animals in all their facets and occupies the Academy of Deeper Learning’s most extensive grounds. Its facilities include three ponds, wetlands, a riding track, a beast stable, and a scholars’ tower. The School also conducts many of the animal experiments required for admission to the School of Medicine. Because medicine is the academy’s most respected field, some students dismissively call it the Other School of Medicine; its director, Tomasolle, takes no interest in that rivalry.

The animals are not confined to impersonal laboratories. In the School’s large room, cages and baskets line the walls, with mice and birds making a constant stir. The room reflects Tomasolle’s priorities: the creatures’ comfort comes before the humans’, most of the space is dim to let sick animals rest, and only the back area is brightly lit by a gas lantern. When Hohsalle visits, a mouse swims in a basin of diluted milk, its nose barely above the cloudy surface. This modest, closely observed scene becomes the setting for a discovery with consequences reaching far beyond the room.

Hohsalle’s Memory Experiment

The mouse in the basin is the product of a deliberate research program. Hohsalle had observed that mice fed a high-fat diet continuously soon after birth developed senility-like memory defects, a condition normally associated with older mice. He used that observation to produce mice with memory problems and spent years repeatedly testing medicines in the hope of finding one that could restore memory. Existing remedies were said to affect memory, but none had yet produced clear results.

The basin test gives that long effort a measurable outcome. About fifty days after treatment began, the mouse could find the ledge nearly as quickly as a healthy mouse. Before the drug, it could not remember where the ledge was, even after being shown: it kept swimming until exhaustion left it close to drowning. Now its nose stays above the diluted milk as it moves around the basin, and its improved performance prompts Tomasolle to marvel at the medicine Hohsalle brought. Hohsalle shares his excitement, but remains careful about what the result proves. When Tomasolle imagines the drug working in humans, Hohsalle insists that this is only one step.

The Divine Ruler’s Curse

The experiment matters because of a concealed affliction among descendants of the founder of the Ancient Kingdom of Otawalle. Memory loss occurs among them more often than coincidence could explain, and many develop it while still in their prime. The condition is especially prevalent in the Three Sacrosanct Houses, whose members are revered as the Most Sacred of the Sacred. Their inherited fear is not simply of illness, but of losing the memory of everything they have accomplished.

Some interpret the affliction as divine punishment for pursuing knowledge too greedily and drawing near to the gods. Hohsalle rejects this moral explanation: illness has no regard for virtue or wrongdoing, and that indifference is precisely what makes it frightening. The condition is privately called the Divine Ruler’s Curse, but discussion of it is forbidden outside the Academy of Deeper Learning so that knowledge of the affliction does not spread. Behind the Sacred Territory’s pursuit of medicine and other disciplines lies a long, almost prayer-like hope of escaping a disease transmitted through the divine ruler’s descendants.

From Animal Result to Human Hope

Tomasolle sees the mouse’s progress as a possible first step toward a human treatment, imagining the joy such a discovery could bring to the Most Sacred of the Sacred. The story does not present the experiment as a cure: its demonstrated result is that a treated mouse with induced memory defects can again locate the ledge with near-normal speed. The gap between that finding and a human application remains explicit in Hohsalle’s response.

That restraint gives the mouse’s small achievement its full significance. It is neither proof that the hereditary affliction can be defeated nor merely a symbol detached from research; it is an animal subject whose altered diet, impaired performance, treatment, and changed behavior make a new medical possibility testable. For a people who have carried fear of memory loss across generations, the mouse’s return to the ledge turns an otherwise hidden hope into an observable result, while leaving the ultimate outcome unresolved.