THINK ABOUTIT’S ALIEN TYPE SUMMARY – Deros
The Deros, an acronym for “Detrimental Robots,” are a purported race of subterranean beings that occupy an antagonistic role in both modern fringe lore and mid-20th-century ufology. Unlike many extraterrestrial classifications, the Deros are considered indigenous to the Earth’s crust, inhabiting vast, ancient cavern systems known as Abandonderos. Described as physically degenerate and mentally unstable, they are often linked to the Sumuwneans in Nuwaubian teachings. These entities are characterized by their extreme obesity, pale “corpse-like” skin, and a lack of traditional human biological markers such as fingernails or teeth. Their primary motivation is the reclamation of the surface world, often achieved through the kidnapping of humans and the use of advanced “ray” technology to manipulate human thought and behavior from beneath the earth’s surface.
Name: Deros
AKA: Abandonderos, Sumuwneans, Detrimental Robots, Cave Dwellers.
Location – Home System: An underground species. Some believe them to be human while others see them as non-humans. These are the beings from which comes our legends of leprechauns and trolls. Unlike the Teros, this ‘little‘ beings are considered ‘demented‘ and cannot be trusted. The Teros try to keep them under control and keep them from having excessive power. The Deros live in underground tunnels, cities and under the sea.
Distance from Earth: 0 miles (Indigenous Subterranean).
Attitude: They contend that the Planet Earth was theirs originally and will be theirs again one day.
Motives: Reclamation of the surface world; kidnapping and biological experimentation on humans.
Physical Appearance:
- Average Height: 4’0″ – 7’0″ (Varies by degree of degeneration).
- Average Weight: 300+ lbs (Typically extremely obese).
- Body Temperature: Cold/Clammy (Lack of solar exposure).
- Pulse/Respiration: Irregular; heavy breathing due to obesity and trunk-like nose structure.
- Blood Pressure: High / Hypotensive (Due to extreme obesity and sedentary cave life)
- Life Expectancy: Hundreds of years (Extended by “stim” ray technology and ancient genetics)
- Hair: Other than their blonde eyebrows, they have no hair on their bodies because of a disease called trichotillomania and are responsible for the diseases trichinosis and trichiasis.
- Skin: pinkish-grey color skin, much like the corpse of a Caucasian, and a pig, having not being exposed to the inner or outer Sun.
- Eyes: are silver grey and they glow in the dark.
- Sex: Dichotomous (Male/Female), though reproduction is primarily through egg-hatching as per Nuwaubian records.
Other Physical Information: The Deros have no fingernails, toenails, nipples, navel or rectum. They have no teeth. Their mouth appears to be full of a gummy, slimy substance. They are nocturnal and hear extremely well. They’re not very peaceful and have a strong dislike for human beings. They are very human in appearance, yet far from it. Their noses are long, trunk-like which is very similar to that of an elephant.
Special Traits and Abilities: Use of “telaug” (telepathic machinery) and “stim” rays for manipulation
Communication Type: Guttural, mechanical, or high-pitched “chattering”; some use of “telaug” (telepathic machinery).
Origin: Subterranean Caverns / Abandonderos.
Life Form Type: Subterranean Humanoid / Degenerate Remnant
Subspecies: Detrimental Robots (Deros), Abandonderos
Most Common Species: The “Obese Subterranean” / Sumuwnean
Level of Species: Degenerate remnant of an Elder Race (Post-Type I Civilization)
Habits: Nocturnal scavenging, telepathic surveillance, and ritualistic feeding
Transportation Type: Mechanical “Sub-terrene” crafts and captured surface technology.
Witnesses Reports: Richard Shaver (The Shaver Mystery), Dr. Malachi Z. York.
Special Features/Characteristics: Many people today who are obese are descendants of the Deros. I’m talking about those people who have a serious weight problem, weighing over 300 pounds, which is abnormal for human beings. It is obviously a hereditary glandular problem and is caused by overactive glands. Certain endocrine gland disorders, such as hypothyroidism or tumors of the adrenal gland, pancreas, or pituitary gland, can cause obesity. It is a trait of who they are from, the Deros.
Summary/Description: This group of insane cave dwellers was called Sumuwnean meaning the obese ones, or Saamiym, and Abandonderos or as they are called today Deros, which is a combination of the words detrimental and robots. These Sumuwneans or Deros really exist. There Chief is Yabahaan. The Sumuwneans are constantly in conflict with the group of beings called the Duwaanis who hold the same belief, that they too will take over the planet one day. They are born by hatching from eggs that are four to six feet in diameter. They grow to seven feet and are extremely obese. The Deros who live in the caves have degenerated so much that, they don’t have much intelligence. They have two stomachs and their digestive system is the same as that of a cow. Deros and cows both chew the cud, meaning when they eat, they chew their food and it goes through the initial stages of digestion where it reaches a large sac that is before the true stomach. The food is then regurgitated to the mouth for further chewing; this is called chewing the cud.
Source: 1996 Nuwaubian Calendar, Extraterrestrial Amongst Us
The Shaver Mystery: Origins of the Dero Legend
The modern understanding of the Deros began in the 1940s with the writings of Richard Shaver, whose accounts became known as the “Shaver Mystery” in Amazing Stories magazine. Shaver claimed to have spent years in underground cities, where he witnessed the remnants of an ancient, highly advanced civilization. According to Shaver, the Deros were the degenerate descendants of this “Elder Race” who stayed behind in the caverns after most of the population fled the planet to escape harmful solar radiation.
Over millennia, the Deros succumbed to the “detrimental” energy of the subterranean environment, losing their moral compass and sanity. Shaver described them using “telaug” (telepathic machinery) and “stim” rays to torture surface dwellers, a narrative that predates many modern “alien abduction” accounts. This historical layer adds a dimension of “High Strangeness” to the Deros, framing them not as space travelers, but as a cautionary tale of biological and technological decay lurking directly beneath our feet.
The legend of the Deros serves as a chilling reminder of the “High Strangeness” that defined early ufology and the Shaver Mystery. Unlike the benevolent “Space Brothers” of later decades, the Deros represent a primal, terrestrial fear—the idea that a degenerate, technologically advanced civilization lives directly beneath our feet. Whether interpreted through the lens of Richard Shaver’s mechanical “telaug” torture or the Nuwaubian history of the Sumuwneans, the Dero narrative challenges our perception of Earth as a safe, fully explored world.
As we archive these accounts in our Alien Type Summary, the Deros remain a crucial study in biological and societal decay. Their influence persists in modern conspiracy theories regarding deep underground military bases and “missing time” abductions. By understanding the dark history of the Abandonderos, researchers can better navigate the complex web of folklore and physical evidence that continues to emerge from the shadows of the subterranean world.
