The aliens who entered the house were like their predecessors in appearance only. They searched the house rapidly and claimed all the weapons they could find, then placed the guns in the fireplace and melted the steel. Next, they systematically destroyed all the door and window locks, leaving twisted metal in their wake.
Finally, they turned their attention to the humans taken to the couch and forced to sit. Long probes were used to place small metal chips in the nasal cavities and an incision cut in their forearms to place a similar device.
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Incisions sealed left a red mark like a burn.
They searched for weapons, then subject to a thin beam of light aimed into their eyes.
In the kitchen, the food examined and small samples taken of material from objects within the house.
The work was complete in several minutes, each alien rechecking the result before they exited the house.