On page 175 of Alien Identities, Dr. Richard L Thompson ( http://www.afn.org/~bvi ) relates an underground abduction case where the underground base was accessed through the sea by UFO:
“ On the evening of January 3, 1979, Cardenas, his friend Fernando Marti, and Marti’s wife and 13-year-old daughter were driving around on the outskirts of Hialeah, looking for a pig they could buy for a roast. They were unsuccessful, and on the way home their car engine quit.
The two men testified that the lights and starter wouldn’t work, and so they got out and began to look under the hood. At this point, they suddenly saw red and violet alternating lights reflecting off the engine and heard a sound like ‘many bees.’ … Filiberto felt paralyzed, and he began to rise in the air shouting “ Don’t take me, don’t take me.” Later he recounted a strange and elaborate story that began when he awoke to find himself sitting, paralyzed, in the presence of a robot-like being and two men in tight-fitting suits. … Filiberto said the alien beings looked quite human. They had elongated eyes with eyelashes, small flattened noses, long lipless mouths, and light beards. They also wore a symbol on the right of their chests, consisting of a serpent on a lazy X.
The story becomes even more extraordinary: The beings proceeded to take Filiberto to an underground base, traveling beneath the sea at high speed through a tunnel of “ firmed water “ that seemed to open in front of the craft so that water did not touch it. At the base, he met a human who was working with the aliens, and he was led through what seemed like a city.”
Dr. Thompson goes on to relate that Filiberto had several experiences while in this underground base accessed through the sea, some of the biological, some of them suggestive of mind control, then he was finally dropped of again on the surface.
And here is another account of an underground UFO abduction: “ Betty Andreason ( Alien Identities, page 201 ) recalled being taken in a UFO through a tunnel bored through solid rock. This tunnel led through a strange landscape with a view of an ocean, a distant city, and a pyramid.”
An account from the Bhagavat Purana, Canto Nine, Canto 3, Texts 28 – 29, does not describe abductions, nor materialistic nor demoniac beings, but it does describe an underground kingdom, in this case an undersea one. “ King Saryati begot three sons, named Uttanabarhi, Anarta and Bhurishena. From Anarta came a son named Revata. Oh Maharaj Parikshit, subduer of the enemies, this Revata constructed a kingdom known as Kushasthali in the depths of the ocean. There he lived and rules such tracts of land as Anarta, etc. He had 100 very nice sons, of whom the eldest was Kakudmi.”
It seems that not all UFO abductees end up being taken to mother ships en route to different worlds, and that not all who remain in this world stay on the surface- some end up below the surface.
Dr. Thompson opens up the section entitled “ Abductions and Crossbreeding “ with the following words on the folklore of Northern Europe: “ Abduction is a standard theme in traditional fairy tales (which must be distinguished from the expurgated versions intended for modern children ). In these stories, men and children are often abducted out of lust by fairies of the opposite sex. Children are also taken, and it is said that a fairy child, called a changeling, may be substituted for a human child. Just as we find in UFO cases, it seems that Sex desire and genetic considerations are involved in these abductions. In support of this, Vallee cited Edwin Hartland, a scholar of fairy traditions, as to the reasons people in Northern European countries gave for this abduction of children: ‘ The motive usually assigned to fairies in Northern stories is that of preserving and improving their race, on the one hand by carrying off human children to be brought up among the elves and to become united with them, and on the other hand by obtaining the milk and fostering care of human mothers for their own offspring.’”
He then narrates several legends which illustrate such abductions very nicely on page 300 of Alien Identities:
” Here is a traditional Celtic story in which the abduction theme is combined with a visit from another world. The Sidhe-king Manannan Mac Lir once got tired of his wife Fand, and she went to Ireland with her sister Libian with the hope of marrying the hero Cuchulainn. They took the form of to birds and rested on a lake in Ulster where Cuchulainn could see them while hunting. The hero tried to capture them but failed, and feeling depressed by this, he sat down by a menhir ( megalithic stone monument ) and went to sleep. Then he saw two women, dressed in green and crimson cloaks, who alternately struck him with a whiplike object. After this, he took to his bed with a strange illness that no Druid or doctor in Ireland could cure.
For a year, Cuchulainn lay sick without speaking to anyone. Then an unknown messenger came to him and sang a song promising to cure him of his malady if he would accept the invitation of the daughters of Aed Abrat to visit them in the other world. He returned to the place where he had taken sick and again saw the woman with the green cloak. She identified herself as Libian and asked him to go with her to the Plain of Delight to fight Labraid’s enemies. She promised him that as a reward he would obtain Fand as his wife.
In due course, he did this, overthrew Labraid’s enemies, and remained in the other world with Fand for a month. Then he returned to Ireland and immediately got into trouble with his wife Emer, who was exceedingly jealous of Fand. Emer obtained from the Druids a drink that caused Cuchulainn to forget all about the otherworld, and Manannan Mac Lir decided to take back Fand. Thus Cuchulainns’s abduction into the realm of Sidhe was relatively brief.
The otherworld of the Celts has various names, such as Avalon, Tir na nog ( Land of Youth ) and Plain of Delight. Examination of the stories makes it clear that this realm would have to exist in a higher dimension. To reach it, one must go to the right place in a three-dimensional space, and then one must travel in a mystical fashion that we do not understand. We can speak of this as an extra dimension of travel in to the three we are familiar with.