Void Mold

Void Mold may not actually be a mold; and if it is, it may be some form of slime mold, instead. It may potentially also be a bacterial colony, or some kind of single-celled entity hivemind. Nobody can be sure.

Void Mold reproduces by finding more rot to grow upon. It spreads like mold, which is how it acquired the name. With the aid of an electron microscope, the Voiders photographed spores.

Void Mold seems to develop on rotting things that find themselves lost, somehow, in the Void. They spread over the surface of said rotten thing, which begins to display a black gunk on its exterior. This happens over the course of a few days.   It is the next stage that is particularly concerning to many biologists. After a time, Void Moid spreads through organic material — such as rotten meat — and forms its own imitation of a neural network. Once that process has completed, which takes months or even years, new sentient creatures may be formed from what was previously dead organic matter; as occurred with the Void Nuggies.   Spores periodically burst free from such creatures to continue to propagate elsewhere. This process might take months, years, or even centuries, and might or might not kill or injure the host creature in the process. What determines the likelihood of this happening is unknown.

Fortunately, Void Mold appears to be limited to the Void, and is killed by natural solar radiation. Therefore, it doesn't exist everywhere in the Void — for example, it has never been found in The Firmament — and it appears to be simply incapable of surviving in the Realm (the natural, physical world), at least on its own. There is no guarantee that their transformed host creatures would not be able to survive, however.

It is entirely possible that Void Mold communicates through some sort of psychic communication. Nobody's really sure.