Brief
Deep underground military bases (DUMBs)
The claims the writer was given for Deep underground military bases (DUMBs), in the order they were given.
1
Ross Coulthart suspects the classified continuation of the United States Air Force astronaut programme operates out of deep underground military bases in different parts of the continental United States.
“I suspect that they're operating out of deep underground military bases in different parts of the USA, continental USA.”
The DANGEROUS Truth About UFOs - Ross Coulthart | DEBRIEFED ep. 76 2026-02-20 00:47:39.9-00:47:47.0 opinion first hand
2
Erik Nanstiel was taken to facilities, possibly underground or in a mothership, on several occasions, and the beings alluded to having facilities underground nearby in Illinois.
“You were taken to what seems not only like a board of craft, but also maybe to some type of facility. Several times... That they have facilities underground. Nearby in Illinois.”
"Skinny Bob is Real" – Lifelong Abductee Reveals Everything - Erik Nanstiel | DEBRIEFED ep. 85 2026-04-24 01:12:05.2-01:12:24.4 testimony first hand
3
One of the messages Erik Nanstiel received indicated there are cavernous systems on Earth filled with life where the entities live.
“according to one of the messages you've received, that there are these cave systems, that there are these cavernous systems on Earth filled with life, like that's where they live.”
"Skinny Bob is Real" – Lifelong Abductee Reveals Everything - Erik Nanstiel | DEBRIEFED ep. 85 2026-04-24 01:48:02.8-01:48:26.5 hearsay
4
On the map Erik Nanstiel was shown, three caverns appeared beneath eastern Illinois, extending from about level with the bottom tip of Lake Michigan at the northern end to as far south as Peoria, Illinois.
“So I saw caverns under eastern Illinois. At the northern end, they were about even with the bottom tip of Lake Michigan. And at the southern end, they were as far south as Peoria, Illinois. ... So there's three caverns.”
"Skinny Bob is Real" – Lifelong Abductee Reveals Everything - Erik Nanstiel | DEBRIEFED ep. 85 2026-04-24 01:54:00.8-01:54:39.7 testimony first hand
5
The three caverns Erik Nanstiel was shown comprised two parallel caverns at the same depth, about a third of a mile (about 0.5 kilometres) underground, and one deeper cavern between them at close to half a mile (about 0.8 kilometres) underground.
“There was two parallel to one another at the same depth and one between them deeper down. And so the two top caverns were about a third of a mile underground ... And then below that, I'd say close to half a mile underground.”
"Skinny Bob is Real" – Lifelong Abductee Reveals Everything - Erik Nanstiel | DEBRIEFED ep. 85 2026-04-24 01:54:39.7-01:55:05.4 testimony first hand
6
At a third of a mile underground, the geothermal gradient would put the upper caverns at about 75 to 80 degrees Fahrenheit (about 24 to 27 degrees Celsius), comfortable for human habitation.
“the two top caverns were about a third of a mile underground, which with the geothermal gradient would probably put it about 75, 80 degrees Fahrenheit. comfortable for human habitation.”
"Skinny Bob is Real" – Lifelong Abductee Reveals Everything - Erik Nanstiel | DEBRIEFED ep. 85 2026-04-24 01:54:45.7-01:54:59.6 opinion
7
The caverns Erik Nanstiel was shown looked like rounded triangles resembling bananas, and at their southern ends they sloped downward, which he reasoned would allow groundwater runoff and let heavier gases such as carbon dioxide sink, giving better airflow circulation.
“they almost looked like bananas because they looked like rounded triangles the way that they're constructed. And at the southern ends, they sloped downward ... you could have groundwater runoff ... and also heavier gases like CO2 would sink down to that. So you have better airflow circulation within the caverns.”
"Skinny Bob is Real" – Lifelong Abductee Reveals Everything - Erik Nanstiel | DEBRIEFED ep. 85 2026-04-24 01:55:05.4-01:55:38.9 testimony first hand
8
Erik Nanstiel fed the design of the caverns into ChatGPT, which did a forensic analysis and told him it was a good design for caverns, and found nothing in the geological record disproving them, noting the bedrock in the area is primarily dolostone, a limestone high in magnesium that is strong enough to support caverns.
“I fed the design of the caverns into ChatGPT and it did a forensic analysis and it told me that's actually a good design for caverns. ... is there anything in the geological record that would prove that they're not there? ... it didn't find anything ... the type of bedrock in that area is ideal. for caverns it said that it's primarily dola stone ... it's limestone that's high in magnesium uh so it's very strong so it can support caverns”
"Skinny Bob is Real" – Lifelong Abductee Reveals Everything - Erik Nanstiel | DEBRIEFED ep. 85 2026-04-24 01:55:38.9-01:56:33.2 testimony first hand
9
The cavern area in eastern Illinois has an advantage of being close to a freshwater source, Lake Michigan.
“another advantage to that, it's close to a freshwater source. ... Lake Michigan.”
"Skinny Bob is Real" – Lifelong Abductee Reveals Everything - Erik Nanstiel | DEBRIEFED ep. 85 2026-04-24 01:57:06.9-01:57:15.6 opinion
10
The cavern area runs through eastern Illinois parallel to and just west of the Indiana border.
“Eastern Illinois running parallel to the Indiana border, just west of the Indiana border.”
"Skinny Bob is Real" – Lifelong Abductee Reveals Everything - Erik Nanstiel | DEBRIEFED ep. 85 2026-04-24 01:57:59.6-01:58:03.8 testimony first hand
11
Erik Nanstiel asked ChatGPT what it would take to detect or map the Illinois caverns, and was told it would cost millions of dollars, though detecting voids could be done for less.
“I asked ChatGPT what it would take to detect or map those caverns. ... It would, it would cost millions of dollars. ... you could detect voids down there probably for less money, but if you want to map the whole thing, it would cost a lot of money.”
"Skinny Bob is Real" – Lifelong Abductee Reveals Everything - Erik Nanstiel | DEBRIEFED ep. 85 2026-04-24 02:00:19.2-02:00:37.7 testimony first hand
12
Mapping the Illinois caverns would need someone like Elon Musk who could write a cheque for it without missing the money.
“So you'd need somebody like Elon Musk who could just write a check and not miss the money at all.”
"Skinny Bob is Real" – Lifelong Abductee Reveals Everything - Erik Nanstiel | DEBRIEFED ep. 85 2026-04-24 02:00:37.7-02:00:42.7 opinion
13
Erik Nanstiel was nervous to talk about the caverns when he first started writing his book, fearing that because their existence under eastern Illinois is testable, an investigation finding no caverns could lead people to throw out his whole story.
“i was nervous to talk about the caverns when I first started writing the book. ... if there's caverns or if there isn't caverns under Eastern Illinois, that's testable, right? ... wouldn't they throw out my whole story if one aspect of the story?”
"Skinny Bob is Real" – Lifelong Abductee Reveals Everything - Erik Nanstiel | DEBRIEFED ep. 85 2026-04-24 02:01:04.5-02:01:32.7 testimony first hand
14
Erik Nanstiel was shown a map of the Greys' (extraterrestrial beings) underground facility and conducted an armchair forensic analysis concluding it is geologically possible for such structures to exist at that depth, undisproven by existing geological assays.
“I only have the map that I was shown. And I did a... sort of a armchair forensic analysis of the area to determine that it is geologically possible for such structures to exist and nothing in current geological assays have been done at that depth that would show or or disprove caverns in in that area”
"Skinny Bob is Real" – Lifelong Abductee Reveals Everything - Erik Nanstiel | DEBRIEFED ep. 85 2026-04-24 02:46:36.5-02:47:14.3 testimony first hand