|The journey of Cabeza de Vaca|
In Cabeza de Vaca's account, the entity is referred to as La Malacosa, a Spanish compound word for "the bad thing." It's not clear if the Spanish translated a local term as La Malacosa or if this was simply how they described this seemingly monstrous entity. And his actions can indeed be described as such.
The Avavares recounted how La Malacosa would visit their homes at night brandishing a hot firebrand, grab whomever he wished, and slice their sides open. He would then reach into the gaping wound and excise a section of entrails that he would then toss into the fire. He then made three cuts in one of their arms and then another elsewhere. He then dislocated the victims arm before resetting it once more. Strangest of all, when La Malacosa placed his hands on their wounds, the closed immediately. The stranger was also prone to sending their dwellings high into the air and letting them crash to the ground.
The Spaniards didn't believe this tale, brushing it all off as a folk legend. The tribal leader with whom they spoke though took them to others in the village who verified these events transpired just as described. Was La Malacosa a demon from the depths of hell or an alien from a subterranean base? Perhaps a time traveler? A traveler from elsewhere in the world who predated Spanish contact? Maybe La Malacosa was simply a strange encounter with an ordinary man that turned into a fantastic tale as it crossed barriers of language, culture, and time.