Glimmerkin

In Lumen Hollow, where a whole cavern-lake burns soft and blue and the raft-markets never truly darken, the smallest folk carry their own light. A Glimmerkin stands no taller than a human child, capped and fine-boned, and glows—gently, from somewhere behind the skin, a lantern lit and kept. In the Lantern Warren they cluster by the thousand, and the Warren at rest looks, from across the water, like a fallen constellation caught among the reeds.

Their glow is not decoration. It is speech. A Glimmerkin can dim to a sullen ember or flare to a warning-white, and among their own kind they hold whole conversations in pulse and color that the Gleaners have never fully learned to read. This makes them the Deep's finest lamp-tenders, messengers, and market-criers; Cassira Vane will tell you the Driftmarket runs on Glimmerkin light and Glimmerkin gossip, in that order, and that she would trust neither Reach without them.

A Glimmerkin lives fast and remembers everything. They pass a single hoarded story down through a whole clutch of cousins, each adding a color to it, until the tale glows brighter than the teller. They are quick, curious, and relentlessly communal—a Glimmerkin alone is a Glimmerkin in mourning, and one who has been long from the Warren will sometimes dim, day by day, until brought back among their own. When one is startled, the whole gathering flickers; when one is threatened, the flare can leave a raider blinking blind while small, deft hands relieve him of his purse. Do not mistake their size for softness. The Warren has outlasted three blights, and by all accounts it did so laughing.