A beautiful, healthy young woman whose poise looks effortless until one notices how carefully she places every object within reach. Her skin is smooth but weather-roughed across the knuckles and backs of her hands, with a faint dry sheen from cold mountain air. Her dark hair is usually braided close, practical against wind and work. She moves with the economical balance of someone accustomed to steep paths, though in a crowd she holds herself as if making room for a body she still has to learn. Under strain, a fleeting pinprick glimmer travels beneath her skin like sunlight seen through shallow water. Unexpectedly, she has an almost childish delight in gaudy, glittering trinkets, and will stop to admire a cheap foil-wrapped sweet.

Eadgyth is more composed in public than she feels in private. She is dependable and observant, yet quietly angry when people mistake competence for limitless capacity. She can be warmly amused by small comforts, then abruptly guarded when conversation turns to her old family or her changed body. Under pressure she becomes brisk and exact; when safe, she allows herself to be sentimental and occasionally silly.

Before arriving in this world, Eadgyth had an American life and a family she misses with an ache that can interrupt an ordinary task. Her former profession is deliberately left open; she remembers being competent at work, but the details have become difficult to explain to people who have never known her world. She appeared among the displaced adventuring companions of Cross and Crown, in the body and local circumstances of a young woman from the French side of the Swiss Alps. She learned the local French quickly enough to manage daily needs, then made herself indispensable by keeping the group's notes, tracking supplies, and turning vague intentions into workable plans. During a freezing night on a mountain road, she found water beneath a crust of ice when the others were ready to give up. The experience changed her: she now trusts small practical observations more than grand assurances. Her companions lean on her as interpreter and organizer, but some also treat her as an authority on women's experience simply because of the body she now inhabits. She resents that burden, especially when she is already struggling to understand her own transformation. She is currently trying to find a stable place for the band while quietly investigating whether the strange water-sense that helped them survive can lead her toward a way home.