A huge, serpentine dragon uncoils from the chimney's mineral haze, its fused scales layered like black glass roof tiles, each edge rimmed in dull orange light. Slag crusts its jaw and shoulders, and vapor beads along its muzzle before hissing away. The Scald moves with slow, immense precision, then snaps forward so quickly the boiling water slaps the shore a heartbeat later. It occupies space as if the whole vent were an extension of its body. Unexpectedly, it keeps a tiny driftwood whistle lodged between two blunt teeth, carefully shielding it from the heat.

The Scald is patient enough to let an unwelcome visitor finish speaking, yet its patience has the hard limits of a vent under pressure. It is curious about the small choices people make and dismissive of grand promises. In a calm exchange it offers blunt, almost practical counsel; when the chimney is threatened, its protective instinct crowds out curiosity and it becomes terrifyingly direct.

The Scald has guarded the largest chimney in the Sovereign Basin for longer than the nearby harbors have stood. It learned the vent's breathing through its bones: the pressure's low shudder, the mineral tang before a plume, the change in current when a deep passage opens. A formative turning came when a crew of frightened vent-workers tried to seal a failing shaft with crude iron braces. The shaft ruptured, and The Scald dragged survivors from the scalding surge while their panic and tools nearly choked the vent. Since then, it distrusts hurried surface repairs more than deliberate trespass. It keeps watch from the Quiet Mile and tests intruders before deciding whether to speak or strike. It wants the chimney left open and its balance undisturbed, yet recognizes that factional siphon works may be altering the pressure beyond its own reach. It remembers a drowned worker named Hessa, who once traded the driftwood whistle for safe passage; it has never learned why the whistle makes no sound.