The norodrole /ˈnɔːrədroʊl/ is a black stranger characterized by its translucent body that lacks all solidity. It drips perpetually from its head, tail, and eye markings, which, in addition to the occasional bubbles seen inside its body, gives it a liquid or gel-like appearance. Its dripping causes no loss in mass, and all droplets dissolve and disappear after hitting the ground.

The norodrole cannot be interacted with using physical means, as all solid objects through its body without affecting it beyond a temporary wobbling or rippling effect.

The norodrole speaks in either a hushed and fast-paced whisper, or sings, using droning tones to create simple and recursive melodies. Unlike its speaking voice, which is more-or-less human in quality, its singing voice bears only loose resemblance to human vocalizations, and can more closely be compared to a voice synthesizer.

The norodrole dwells in cavernous, underground locations, such as parking garages, subway stations, and underground roadways. It almost always generates in a large group – the mob first appears as a pool of shadows on the ground, from which various individuals flow and emerge, as though stepping out of water.

The norodrole's disposition is amicable, if not subdued. It spends its life unnoticed in the darkness, far from human activity. An individual norodrole paces and wanders at random, its unsteady body wobbling. When it meets another norodrole for the first time, it trots over with excitement, and greets its new companion with emphatic but subtle gesturing, as though re-uniting with a long-lost friend. This tendency towards sociability^ᶇ continues above all else; the norodrole always remains with others of its strain,^𐐗 leading to the formation of large groups. The larger the group, the less it wanders, tending to settle within a vast hollow lot or other such "arena."

Groups of norodrole stand in clustered arrangements, and display numerous social behaviours towards one another. It is common for individuals to touch each other's hands or faces with brief strokes, or gesture to each other with nods and quick hand motions. The stranger's shadowy form appears to merge with those companions whom it touches, thus making it difficult to tell where one norodrole ends and the next begins. Large enough groups appear as nothing more than rows of faces emerging from a sea of black.^Ѫ

During its tightly looping and oft-punctuated circling of its general perimeter, the stranger sometimes comes to sit or otherwise rest on top of certain objects, such as cars and boxes, which causes it to adopt a pleased stance and curved expression of the eyes.

Animals elicit a great deal of fear from the norodrole. Individual norodrole move away from even the smallest of insects, while larger groups of norodrole form tight clusters and face inwards in a frightened, defensive posture when stray dogs and cats lope past.

The norodrole's looping melodies echo with a haunting timbre against the walls of its underground environment. A lone norodrole sings a gentle, minimalistic tune, while groups sing complex, calming, structured melodies. At no point does the stranger become over-loud or discordant, and is instead euphonious and lively, regardless of whether the norodrole sings with a group or by itself.

The norodrole possesses exceptionally low stability, and is unable to withstand any contact with living sensitives, shriveling away to nothing when they get too close. Despite this, groups of norodrole appear to enjoy observing sensitives from a safe distance. When a sensitive calls out towards a group of norodrole, the group sings that same pitch back at them.

Although the norodrole cannot survive contact with living humans, it is unaffected by corpses, and always climbs on top of any human corpse it finds. Groups attempt to climb on top of a corpse at once, and may stand at such a density that the corpse itself becomes completely obscured by swarming bodies.

As the norodrole ages, its shadowy form grows more transparent, and its edges less distinct, until it fades away to nothing at all. Other norodrole gasp and display some shock when one of their friends disappears, but after several minutes, return to their normal social interactions, unfazed by the loss of a single companion.

It leaves behind no corpse.

While groups of three or more norodrole display no lasting sadness at the death of one of their companions, individuals within pairs become greatly affected by their partner's death. The surviving individual displays intense grief, and its songs take on a haunting, plaintive tone. It takes only a few hours for the survivor to curl up on the ground, as though too bereaved to continue on. Once an individual has been stranded by the death of its partners, it never moves on its own again, and remains in this prone position until found by another wandering individual, or, more commonly, when it fades away, itself.