The teredroni /ˈtɛɹədroʊni/ is a stranger that resembles a ragged sheet of fabric draped over an unseen form. Its body is made of a burlap-like material that ranges in color from grey to dull green, with staining or black marks in occasional individuals. Its limbs are thin, with small fingers, and its head hangs down between its front legs, while its limp and frayed tail hangs down between its back legs. It has a musty odor.

The teredroni cannot heal itself once damaged, and can be killed even with strong enough impacts to its form. It is not harmed by water, but does become soaked during rainy weather, at which points its movements grow heavier. The teredroni is flammable, albeit less so than might be expected, but otherwise resists heat and cold.

It speaks with a slow, groaning near-whisper, and its voice is always masculine in tone. It emits the sound of heavy, rasping breathing when not speaking, which reverberates and echoes off the walls around it.

The teredroni appears in alleyways and other outdoor areas during foggy mornings, and exclusively within non-residential areas, appearing to show a preference for the narrow alleys behind bars and restaurants. It prefers temperatures of between 48-62°F, and never appears during rain or snow. It starts off as a small crumpled piece of fabric, which grows larger and expands upwards to form the teredroni's frame in a process taking four to sixteen minutes.

The teredroni's disposition is weary but cruel. It is active only in the early morning hours, when mist fills the streets and human activity is at a minimum. Within its small territory, it walks from place to place carefully, pausing every few steps and pacing throughout the world with an ominous nature and a curiosity in spite of itself. Unable to turn its head, the teredroni rotates with small steps to stare at posters on alleyway walls or gaze out onto the unridden streets. When not in motion, it reaches through trash cans and into the small piles of urban detritus that line the streets in which it appears, moving in predictable patterns.

While each teredroni keeps a clearly defined territory, the edges of its range tend to overlap with neighboring individuals. When two teredroni meet, they stare, motionless, at each other for anywhere from a few seconds to several hours before both simultaneously continue on their way.

The teredroni proves itself elusive, and allows itself to be seen only by sensitives that are exhausted, intoxicated, or otherwise incapacitated.^३ It prolongs this exhaustion by causing a feeling of further light-headedness in its presence.

The teredroni displays loose inclinations of its own. Once a sensitive is appropriately inebriated, the teredroni positions itself over the subdued target and rolls it over, turns it over – inspecting. If the subject remains complacent, so too does the teredroni remain benevolent. But should the subject fight back, this is when the teredroni gives action, crippling its subject with self-destruction: if the target attacks the teredroni with their fists, the teredroni will place its hands upon these fists and make them invisibly "alien" from the sensitive's body, who then attempts to destroy this offending section of their self by whatever means necessary. If the subject levels a kick, their foot will similarly be made foreign, and so on.

Despite its relatively imposing form, it is still a timid beast in any other encounter.

The teredroni displays reverent behaviours towards the corpses of sensitives, placing its body over them and protecting them from rain and other inclement conditions.

The teredroni exhibits no signs of aging, beyond the accumulation of day to day wear-and-tear. When it reaches the end of its lifespan, it collapses to the ground with a sudden, silent loss of structure. Its corpse remains on the ground as a lifeless piece of fabric, and decays over time into ragged fibers. Other teredroni, when their paths lead them near the corpses of their fallen companions, move the fabric around with listless disinterest for several minutes before they wander off once more.