Ivan Mackerle: Death Worm Hunter
Posted by: Loren Coleman on May 17th, 2007
Ivan Mackerle: Here be monsters

Photo courtesy of Ivan Mackerle and Prague Post
For the past 30 years, this self-made cryptozoologist has traveled the world searching for creatures that defy documenting. Mackerle has spent his life savings outfitting expeditions, from the deserts of Asia to Loch Ness, with Papua New Guinea in his sights now.
Illustration by Jiri Zacek/courtesy of Ivan Mackerle
Three trips to the Gobi Desert failed to unearth any scientific proof of the death worm allghoi khorkhoi.
Wherever and whenever it was, Ivan Mackerle, the noted Czech adventurer and seeker of apocryphal creatures, has finally found a sense of skepticism.
Maybe he found it in the Gobi desert as his explosives concussed beneath the dunes, sussing out a legendary worm. Or perhaps it was while hacking through the thick of Madagascar’s jungles in search of a man-eating death blossom, or scuba diving beneath the blue waters of a remote Micronesian island, sure he’d discover a mausoleum filled with platinum coffins.
Over the past 30 years, Mackerle, 65, and his small band of friends have traveled across the world in search of legendary animals — cryptozoology, the field is called — and occult sites, lost treasures and hidden kingdoms buried deep within the earth’s crust.
With the dedication of a child on an extended summer holiday, Mackerle has let nothing stand in the way of his journeys — not the former communist government, not social norms, limited resources, or, most perilously, the stubborn refusal of monsters to exist.
“I sacrifice everything for this,” he says while recounting his trips, leafing through the photos and maps that pepper a book he’s written on the subject. He’s dressed in the self-conscious clothing of a field man, all khaki with multi pocketed vest. His gray hair is tousled and his round sunglasses tinted red.
“Most people, when they’re adults, they marry and their lives begin,” he says, with a hint of wistfulness. “They have children and make money, they have their careers. But I wanted to stay in my dreams, with these adventures.”
Occupied thoughts
Those dreams began early, during his childhood in Plzenˇ, west Bohemia. Mackerle was 3 when the Americans liberated the city at the end of World War II. “When I was young in school they taught us that only the Russians liberated us,” he says. “I had trouble with that, I said. I have photos from when I was a little boy with American GIs and their jeeps.”
That’s when Mackerle began to wonder if explanations for dissonance in the world existed beyond the party line.
During his youth, Mackerle immersed himself in books on mysteries and exploration, such as those of the Russian paleontologist and sci-fi writer Ivan Yefremov or the American investigator of the unexplained, Charles Fort, whom the British writer Colin Wilson has described as the “patron saint of cranks.” (Fort’s work has inspired a whole cottage industry, 75 years after his death; his name has even become an adjective describing anomalous phenomena — Fortean.)
In this pulp from an earlier era, Mackerle found his life’s calling. And throughout his training as an automotive engineer — following his father’s footsteps — and a nascent career as a hydraulics designer, he never escaped his siren’s call.
“I didn’t only want to read about [mysteries],” he says “I wanted to search, to try and find out if it was true or only fiction.”
Saving up his money, in his early 20s Mackerle bought and refurbished a German amphibious jeep from World War II. “It was the ideal car for expeditions,” he says. “It has four-wheel drive; it can go in the water.” And with that, he and two friends were off on their first expedition outside the country, to Transylvania. They were going to find Dracula’s castle.
Using Bram Stoker’s book as their guide, they drove in the footsteps of the novel’s hero, Abraham van Helsing. They knew Stoker had never been to the region, but, given the book’s origins in local folklore, they held out the hope of discovery. They finally found some stones and walls. “We thought it was Dracula’s castle,” Mackerle says wryly, while acknowledging that many now believe that Vlad the Impaler, whose Bran Castle is on the other side of Transylvania, was the source of Stoker’s inspiration.
Still, the trip was enough of a success to launch a much larger expedition: Mackerle wanted to cross the Iron Curtain and go up into Scotland in search of the Loch Ness Monster. He was repeatedly frustrated in his petitions to cross the border, but his team finally got the go-ahead after Mackerle wrote an impassioned letter to the state about his research. It was 1977 and he was 25 years old.
Loch Ness changed everything. As with Mackerle’s future journeys, his team had no financial backing, so their survey required ingenuity ? they couldn’t afford a boat, and instead jury-rigged a raft out of a plastic pool, tractor tire tubes and a metallic frame. “In the floor were small windows where we could look through to the water,” he says. “But we didn’t see the monster.”
The team of young Czechs couldn’t stay long at Loch Ness — Mackerle only had three weeks’ vacation from work — but they were there long enough to meet Robert Rines, an American lawyer and inventor who had a fleet of specialized underwater photographic and ultrasound equipment searching for Nellie. Mackerle was impressed, and when he returned to the Czech Republic, he began to give presentations at clubs and schools on his adventure in the West and the marvelous investigations of Rines.
“It was very popular,” he says. “The government didn’t want me to speak about this mystery because it was not materialistic. … Because these lectures were so popular, I quit my job and started to freelance. It was very unusual at the time.”
The Czechoslovak state did not allow Mackerle to replicate his trip to Loch Ness, so he had to satisfy himself investigating domestic mysteries, like Prague’s golem. It was frustrating. Even fellow communist states, such as Mongolia, were cold to his entreaties. And Mongolia’s Gobi desert held particular fascination for Mackerle, as it was the rumored home of a legendary and deadly worm that had gripped his imagination since childhood: the Allghoi khorkhoi.
Explosions in the desert
Mackerle first read about the worm as a boy in the stories of Yefremov, the Russian paleontologist. Yefremov wrote that the worm, which resembled a bloody intestine, could grow to the length of a small man and could mysteriously kill people at great distance, possibly with poison or electricity. Poor Mongolian villagers could only cower in their yurts in fear.
“I thought it was only science fiction,” Mackerle says. “But when I was in university, we had a Mongolian student in our class. I asked him, ‘Do you know what this is, the Allghoi khorkhoi?’ I was waiting for him to start laughing, to say that’s nothing. But he leaned in, like he had a secret, and said, ‘I know it. It is a very strange creature.’”
After that, Mackerle knew he had to search for the elusive worm. But it wasn’t until the Velvet Revolution — he was a face in the crowd on Wenceslas Square — that the trip could happen. By the next year, 1990, Mackerle and his two loyal companions, Jirˇí Skupien and Jarda Prokopec, were in the southern Gobi desert.
In three trips to Mongolia (he returned in 1992 and 2004), Mackerle never found the Allghoi khorkhoi. But he traveled the whole of the Gobi, drinking fermented milk with herdsmen and swapping hearsay and dirty stories. Once, their guide said he knew of a young boy killed by the worm. On his last expedition to Mongolia, Mackerle brought an ultralight plane with a camera that scanned the dunes for signs of the Allghoi khorkhoi, which would be displaced by explosions set off beneath the sand. Still no luck.
Mongolia and Mackerle’s subsequent expeditions over the past 15 years to Australia, Micronesia, Madagascar, Siberia and elsewhere share one similarity: the pang of failing to unmask the mystery of a paranormal site or discover a new and fantastic species. But that does not mean creatures such as the Allghoi khorkhoi should be written off as tall tales, Mackerle says. After all, such stories led scientists to discover the Komodo dragon and mountain gorilla.
Until they’re documented, he says, about his legendary beasts, “Ordinary biologists and zoologists don’t believe they can exist. For them it’s not a science, it’s a pseudoscience.”
But some cryptozoologists are well respected, such as Roy P. Mackal, who hunts for the Loch Ness Monster, or Dr. Karl Shuker. “They are scientists, and they are looking for creatures. They think it is possible to find, somewhere out there, animals that aren’t yet known.”
That possibility is animating, and when you talk with Mackerle, it is infectious. He lives in a world of potential, of what still could be, the hope that everything hasn’t been explained. Mystery exists.
That’s not to say his enthusiasm hasn’t been tempered by experience. After three trips, he has no desire to go back to Mongolia. If there’s a death worm, someone else will have to find it.
“Today, I’m more skeptical about everything,” he says. “But I have had strange experiences that are hard to explain. So I’m open-minded, even if I’m not as enthusiastic after all I’ve seen.”
So why continue with his expeditions, with little hope of actual discovery?
“Mainly, it’s for love of adventure,” he says. “Naturally I’d like to make a discovery, but it’s very difficult to find something new. But still, it’s exciting to go through the countryside with machetes, to drive through the desert meeting people to talk about mysteries.”
Dinosaur calls
Mackerle continues to be self-employed, giving lectures and saving every penny made from his book, Cesty za prˇísˇerami a dobrodruzˇstvím (“Quests for Monsters and Adventure”), and his regular column investigating mysteries for Mladá fronta Plus, a weekly supplement to the daily newspaper. Most recently, he’s been exploring the possibility of premature burial — a fear enough people take seriously to fuel a small industry in modified coffins with phones and air supplies.
The column has sapped some of Mackerle’s time from planning his next expedition, but in this planning he has support: his son, Danny. (Mackerle has been married since his 20s, but his presumably patient wife has never joined the expeditions, which remain very much a boys’ club.) While Mackerle would seem a dream father for any boy, for a long time Danny was focused on anything but adventure travel. As a teen he was more interested in music. But ever since he joined Mackerle on the Madagascar trip, Danny, now 44, has become the driving force of the expeditions.
“He says, ‘Daddy, we must prepare another expedition,’ ” says Mackerle. And so, despite Mackerle’s desire to lengthen his breaks between adventures, another expedition is in the works for this fall, to Papua New Guinea.
Reports have surfaced of Amazonian cannibals there, he says. “Women walking naked through the jungle with spears.” In order to repopulate, Mackerle adds, “Sometimes they grab men from villages. … Then the men are ritually killed and eaten.”
A military officer from Jakarta has investigated the reports but failed to find any Amazons. It’s likely a myth, Mackerle says with a youthful snicker. “But it’s very good for the newspaper, a good story with all the sex and nudity.”
The Amazons are a pretext, anyway. There’s another reason Mackerle is going to Papua New Guinea: Unconfirmed reports of pterodactyls soaring through the jungle’s canopy. Their skin is fluorescent, they say; as the dinosaurs whisper through the air at night, they glow.By Paul Voosen, Staff Writer, The Prague Post, May 16, 2007.
Article and images used with the permission of Paul Voosen. Thank you, Paul, for the best biographical profile of 2007, to date. Great article!
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Wow! What a guy. Sounds like life is rarely dull for him. I wonder if he needs an assistant? Hmmmm……..!
This is an absolutely fascinating article. I was entranced the whole way through. I have the utmost admiration for this man who chose to pursue these adventures, who chose to make it his mission to shed light on the mysteries of the world and live life on his own terms. Trekking through deserts and forests in search of the unexplained just really strikes a resonant chord with me and I find my imagination getting carried away with what he must have seen and may find in the future. I wish him all the best of luck on his expeditions. Keep on searching!
I would guess a skink, modified by folktales. Possibly extinct.
Other Mongolian Death Worm expeditions:
Extreme Expeditions
The Allghoi Khorkhoi — Mongolia 2003
http://www.extreme-expeditions.net/prex03mongolia1.htm
The Centre for Fortean Zoology
Operation Death Worm — Mongolia 2005
http://www.cfz.org.uk/dwrep.htm
Apart from sheer scale, MDWs are much like Dune’s fictional Sandworms.
Although they’re small mammals, southern Africa’s blind, sand-dwellling Golden Moles (Google images) are every inch monsters to their prey. Cute, though.
The Gobi Death Worm, my all time favorite cyptid. Probably because I’m one of the few Tremors fans out there. This guy sounds like he would be a blast. Great article Mr. Coleman.
It sounds like this guy has had a great time not finding anything.
Mr.Inspector- Are you kidding me? I’m a big fan of “Tremors” from way back!
I’m also a fan of the Mongolian Death Worm. Graboids, let’s call them Graboids!
Legendry Skeleton……….
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Persistence will payoff. I Hope that Ivan Mackerle will locate the death worm. It could be the Biggest Amphisbaenid in the world (they are worm lizards with 140 known species). Slender, limbless burrowing vertebrates that look like earthworms, the identity is favored by Czech Cryptozoologist Jaroslav Mares. But we won’t know, until a specimen is obtained.
MrInspector, you are not alone. The first TREMORS is a classic monster movie in my opinion. It was scary, exciting, and funny with quirky characters. I love that movie.
Rock, paper scissors to see who has to go find the death worm next.
The death worm is one of those oddities that it is hard to sift out myth/stories from fact. And I admit, I’ve got a lot of admiration for the guy, because hanging out in the Gobi and then going back twice more is tougher than I am!
Tremors 1 rocked. Perfect example of why to leave a good movie alone.
I wish I had the money and the youth and energy to chase my dreams like that! Or not…
Sprindheeledjack- I agree that this cryptid has a whole lot of things surrounding it that seem to point to it as being a mythical creature. However, a lot of very real animals are seeped in myth by the indigenous people. In Japan, there are a lot of known animals that have so many mythical properties ascosiated with them, that you would think they were pure folklore if you didn’t know they existed. I feel that although the Mongolian Death Worm may not embody all of the abilities that it is said to have, there could very well be an undiscovered large skink, snake, or some sort of desert worm that serves as the basis for all the stories. Some of the myths revolve around a grain of truth.
Mystery Man, the death worm is no myth, plenty of factual evidence. an early reference as noted by Dr Karl Shuker in his ” BEASTS THAT HIDE FROM”, can be found in the Book on the trail of Ancient Man (1926) by Roy Chapman Andrews, famous American Paleontologist. The book is bout the American Museum of Natural History’s 1922 expedition to the Gobi in search of Dinosaur fossils.
When he had signed the necessary permits, the Mongoloian Premier asked Andrews if he capture a specimen of ALLERGORHAI-HORHAI.
Bob Michaels- I didn’t say the Death Worm was a myth. I said that some of the folklore was probably based on some sort of real creature. The myth comment was in response to springheeledjack’s comment. The Mongolian Death Worm is one of my all time favorite cryptids and there is every possibility that it is out there. What it is exactly is not known, and there are many stories attributing some pretty far out powers to it, but like I say, there is no reason why there couldn’t be a creature that these stories revolve around. It’s going to be a hard one to find considering the harsh habitat it supposedly resides in.