Threadbeasts are a form of homunculi built up of excess air particles. Any sort of floating particle you can see in a sunbeam is used to weave their rope-like core and the blanket of their outer skin. They are often compared to living dolls, as their being is often fabric-like to the touch. Threadbests are created by Spiders, women who carry the gene allowing them to weave these homunculi from thin air. Threadbests must rely on Spiders to help them repair broken threads or add additional threads to their body as they age.

Threadbests' sentience is derrived from memories of humans encoded on their core. The memories do not necessarily be formed from one person, and each homunculus also often contains memories of the Spider that created them, instructing them on how to form functioning senses.

In order to move, most Threadbeasts find the focus required to manipulate all their threads at once too distracting and instead rely on a tendon system. They wrap multiple strands around each other to serve as a "tendon" for each limb, giving them a full range of motion with less attention to their movements.

Like all homunculi, Threadbeasts are unable to feel emotions aside from those already present within the memories in their core. This causes them to become less and less human-like as they age, both in personality and physical appearance. Most settle on a quadrupedal form as it offers enhanced balance and agility over that of a bipedal form. Even for those that choose to keep a humanoid shape, their features become less and less defined as they age and as the Threadbeast's humanity fades. This is rarely a conscious choice.

The core of a Threadbeast has a pull, almost like a gravitational pull, on other threads around them. The older the core, the greater pull on those around it. Because of this, it is unwise, if not deadly, for two Threadbeasts to be in proximity, as the older may absorb the younger, intentionally or otherwise.

Physically, Threadbeasts are fairly fragile. While they are able to shift broken threads or reknot them, the threads snap easily and must then be repaired or replaced by a Spider. The threads that make up their bodies are also exceptionally flammable and any exposure to open flame will most likely result in the homunculus being burned into nothing. Threadbeasts are unable to feel pain, nor do they need to breathe or eat or drink.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi varius libero non sem dapibus, eget viverra nisl sagittis. Ut interdum mi non sagittis euismod. Suspendisse id venenatis massa. Aliquam ornare, nibh sit amet interdum elementum, leo sem laoreet nibh, at sollicitudin diam ipsum eu risus. Aenean gravida eu nibh id tincidunt. Pellentesque lorem mauris, cursus sed ligula eget, cursus posuere risus. Phasellus vel enim volutpat, sagittis augue at, condimentum ex. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Praesent consectetur semper ligula, nec pretium tellus iaculis at. Nulla facilisi. Phasellus gravida pellentesque dui. Vestibulum vel dui sed odio vehicula finibus sit amet non mauris. Donec ut posuere dolor. Interdum et malesuada fames ac ante ipsum primis in faucibus. Aliquam et nibh lorem.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi varius libero non sem dapibus, eget viverra nisl sagittis. Ut interdum mi non sagittis euismod. Suspendisse id venenatis massa. Aliquam ornare, nibh sit amet interdum elementum, leo sem laoreet nibh, at sollicitudin diam ipsum eu risus. Aenean gravida eu nibh id tincidunt. Pellentesque lorem mauris, cursus sed ligula eget, cursus posuere risus. Phasellus vel enim volutpat, sagittis augue at, condimentum ex. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Praesent consectetur semper ligula, nec pretium tellus iaculis at. Nulla facilisi. Phasellus gravida pellentesque dui. Vestibulum vel dui sed odio vehicula finibus sit amet non mauris. Donec ut posuere dolor. Interdum et malesuada fames ac ante ipsum primis in faucibus. Aliquam et nibh lorem.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi varius libero non sem dapibus, eget viverra nisl sagittis. Ut interdum mi non sagittis euismod. Suspendisse id venenatis massa. Aliquam ornare, nibh sit amet interdum elementum, leo sem laoreet nibh, at sollicitudin diam ipsum eu risus. Aenean gravida eu nibh id tincidunt. Pellentesque lorem mauris, cursus sed ligula eget, cursus posuere risus. Phasellus vel enim volutpat, sagittis augue at, condimentum ex. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Praesent consectetur semper ligula, nec pretium tellus iaculis at. Nulla facilisi. Phasellus gravida pellentesque dui. Vestibulum vel dui sed odio vehicula finibus sit amet non mauris. Donec ut posuere dolor. Interdum et malesuada fames ac ante ipsum primis in faucibus. Aliquam et nibh lorem.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi varius libero non sem dapibus, eget viverra nisl sagittis. Ut interdum mi non sagittis euismod. Suspendisse id venenatis massa. Aliquam ornare, nibh sit amet interdum elementum, leo sem laoreet nibh, at sollicitudin diam ipsum eu risus. Aenean gravida eu nibh id tincidunt. Pellentesque lorem mauris, cursus sed ligula eget, cursus posuere risus. Phasellus vel enim volutpat, sagittis augue at, condimentum ex. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Praesent consectetur semper ligula, nec pretium tellus iaculis at. Nulla facilisi. Phasellus gravida pellentesque dui. Vestibulum vel dui sed odio vehicula finibus sit amet non mauris. Donec ut posuere dolor. Interdum et malesuada fames ac ante ipsum primis in faucibus. Aliquam et nibh lorem.