Givra is compact and square-shouldered, with the economical stance of someone accustomed to leaning into heavy gates. Her hair is shaved close at the sides and combed into a precise, ridged crest that she trims herself with almost ceremonial care. She smells unmistakably of wet limestone, lamp oil, and the sharp mineral tang of canal water; she knows it and considers the smell proof that she has been doing honest work. Her waxed coat shines at the elbows, and when she walks she places each foot as if testing the firmness of a submerged plank. The unexpected detail is her fastidious grooming: even after a shift in the sluice tunnels, she keeps her nails buffed and her hairline exact.

Givra is exacting about measurements but unexpectedly tender with people whose livelihoods depend on them. In public she is controlled and procedural; alone, she vents her fear by polishing tools and rehearsing questions she may never dare ask. She distrusts authority that hides its figures, yet dislikes being treated as a hero and will deflect praise with a correction or a chore.

Givra was raised in the dry terraces above Kett's Dry Cut, where a missed water allotment could ruin a season. Her mother, a stone setter, taught her to read mineral stains on canal walls; her father kept the public water marks and taught her that a number was a promise made visible. At seventeen, Givra watched a night release flood a low quarter after an official altered a reservoir mark to favor a wealthy estate. The family that lost its home included her closest childhood friend, who left town and never wrote again. Givra took the keeper's post years later, determined that public marks should be inspectable by anyone. She maintains the water records and the gate mechanisms, and has lately found faint, repeated abrasions around several reservoir marks. She suspects an insider is changing them between inspections. Meryet of the Deep Measure, an old friend and trusted specialist in subterranean water levels, is her closest ally and the one person she will risk asking for help. Their friendship is strained because Meryet urges patience while Givra wants to expose the culprit before the next dry season.