Flb'Dbi

The  are a fictional alien race featured in comic books published by Marvel Comics. They are part of the mainstream Marvel Universe and first appeared in Fantastic Four, Volume 1 #221 in August, 1980.

Biology
The Flb'Dbi appear to be cephalopod creatures standing approximately three feet tall. They have large, dark eyes, a slightly insectoid head and a hair of tubular fibers. They have tentacles in place of arms and legs. The Flb'Dbi possess the ability to communicate with one another telepathically.

History
500,000 years ago, an alien race known as the Flb'Dbi came to the planet Earth and landed in the Arctic. An exploratory expedition, they remained on the planet for several thousand years collecting data. A mysterious phenomena occurred that reversed the polarity of the entire planet, sending an electromagnetic wave that rendered their space vessel inert. Unable to power their ship's engines, they created plastoid drones to effect long-term repairs while the Flb'Dbi placed themselves into suspended animation until such time that they could leave. Half a million years later, the Flb'Dbi awakened, and found that the drones had erected a massive crystalline tower - the purpose of which was to reverse the Earth's polarity again so that they could leave. Their first attempt to accomplish this generated a second electromagnetic wave. The Fantastic Four went to investigate and were forced to do battle with the drones. The Invisible Girl met with the Flb'Dbi leader, Primus, who explained his position. The FF helped them to repair the ship so they could leave and the Thing destroyed the crystalline tower.