Jessa takes up more space than her small frame should: she plants her feet wide, leans into conversations, and treats every threshold as a starting line. Her grin reveals a broad front-tooth gap and a stubborn little jaw that works noisily through crusts and apples. Long hair hangs in sun-faded ropes, usually snagged with burrs; her tunic flaps around her knees as she runs. She leaves the impression of a person already halfway into her next idea.

Jessa is quick to laugh and eager to include anyone who seems lonely, yet she becomes stubbornly serious when she thinks someone is in danger. In a crowd she performs for attention; alone with a worried person, she becomes unexpectedly patient. She wants adults to trust her, but bristles when they treat her like a baby.

Jessa was born in Sedgewick, a farming village built around a spring that sometimes runs backward after heavy rain. Her mother, Tamsin, mends sacks and nets; her father, Olek, tends the millrace and is away for days at a time repairing channels upriver. Jessa learned the village paths by carrying messages and playing chase with older children. Last spring, a flood tore through the lower lanes. Jessa had been drawing a map in chalk when she noticed the water creeping toward the schoolhouse. She led three younger children up the old kiln steps before the doors jammed with debris. Since then, adults listen when she points at water or weather, though they still tell her to stop running indoors. She is now mapping blocked wells and strange damp patches around the abandoned mill, convinced the spring is warning them of another flood. Her friend Nilo thinks she is making it all up; her mother quietly worries the child will get hurt investigating.