Vegan (K9 and the Beasts of Vega)

Vegans were beings of sentient energy who inhabited the space around the planet Vega 3. When the humanoids who inhabited Vega 3 pressed out into space with their Spaceshifters to build a new planet, they inadvertently disturbed the Vegans' home with their construction lasers. Consequently, the Vegans responded by turning their victims' fear against them. In some cases, they were able to completely paralyze the humans by making them all but comatose with fear. In others, they were able to project the image of giant beasts into the minds of the humanoids. K9, who had no emotions, was able to resist the Vegans' influence and discover the truth about the species. (AK9: K9 and the Beasts of Vega)