Vane stands like a sealed hatch made upright: square, deliberate, and difficult to hurry. His abyssal-iron plates have a satin-black finish dulled by mineral grit, while pressure-sealed brass seams catch the greenish light of the rig decks. A narrow grille at his sternum exhales a faint pulse of warm, briny air. When he turns, small ratchets click beneath his shoulders, followed by the low, steady hum of his kinetic core. He always checks the same worn brass pressure gauge strapped to his left wrist, rubbing its glass with his thumb before issuing an order. The unexpected detail is the tiny carved likeness of a three-legged seabird fixed to his collar, polished smooth from frequent handling.

Vane is exacting in public and surprisingly patient with frightened workers. He mistrusts improvisation when lives depend on a seal, yet will ignore a superior's order if he believes it will sacrifice a crew. In calm moments he is dryly funny and attentive to small comforts; during a crisis he becomes brisk, procedural, and difficult to interrupt. He wants to be trusted, but dislikes being depended upon in ways he cannot control.

Vane was assembled for hazardous pressure work and spent his first decades bracing extraction rigs, hauling workers from flooded chambers, and learning how panic sounds through a sealed helmet. He earned command during the Silt-Lung Surge, when a vent flare ruptured a patrol corridor. His unit had orders to hold the machinery, but Vane broke formation to keep an evacuation route open. He saved a trapped crew and lost two of his own patrol partners to the collapse. The experience made him believe that procedures matter most when everyone is frightened, yet it also taught him that a regulation can be a finely printed way to abandon people. Now commander at Black-Vent Anchor, he oversees Quiet Watch patrols and pylon maintenance while arguing with Pearl Directorate administrators over unsafe extraction schedules. He trusts his logistics officer, Hesh, who can read a failing seal by its vibration, and keeps a wary distance from a trench navigator called Senn, who insists the newest pylon readings are not natural. His current problem is a series of unexplained pressure fluctuations around an ancient pylon. Directorate officials want continued production; Vane has begun quietly diverting crews to investigate.