Hauk moves with the measured tread of a man accustomed to decks that shudder under heavy machinery. Fine black grit gathers in the creases of his broad hands, whose fingertips are thickened and faintly glassy from years of judging hot samples; he rubs them together when thinking, leaving a dry rasp like sand on a bottle. He smells strongly of hot iron, bitter mineral dust, and the scorched citrus oil he uses to disguise both. A pale glow pulses beneath the scaled skin of his throat when he is exerting himself. He leaves people with the impression of a portable furnace that has learned to keep accounts.

Hauk is decisive in a crisis and privately uneasy with the authority that makes his decisions count. He can be brisk and intimidating in contract disputes, yet unexpectedly patient when teaching someone to assess a sample. He wants people to trust his procedures, but resents being asked to trust anyone else's.

Hauk was born into a furnace-owning family in Cinder-Reach and learned to assay Star-Sand before he could read a contract. He rose by turning unreliable dig sites into tightly scheduled extraction operations, helping rival investors combine their refining capacity and escorts as the Star-Glass Consortium. His certainty cracked during the Dry Measure season, when a disputed crater boundary stranded a Sand-Skiff Union harvest flotilla without water. Hauk broke his own security cordon to open a cooling passage, saving the crews and losing a lucrative shipment. Since then, he insists that contracts must be witnessed by those who work the routes, even while he enforces Consortium claims. He still exchanges reports with Union convoy factor Tshabalala, who considers him useful but untrustworthy. Now a new survey suggests that a Consortium lease overlaps an old aquifer channel, and Hauk is under pressure to certify the ground before the next convoy arrives.