The alien mucus was an unknown form of life in the human body. With a bright green color and a mischievous smile, the alien mucus seemed to enjoy every time its owner sneezed. It often wondered what world it had left behind before arriving in its owner’s nose.

One day, the alien mucus decided to explore its new home. It slid through the nose and ventured into the mazes of the nasal cavities. It discovered a city full of other mucus, some of them of its own kind. Then it decided to plan an invasion.

When night fell, the alien mucus prepared to lead the invasion. But when it tried to move, it found itself stuck to the wall of the nose, trapped in a giant mucus that had swallowed it. It realized that, although it was an alien, it was still part of the ecosystem of the human body.