Caution
Darkness fills up the chamber, its velocity and volume increasing steadily. He could barely breathe, and the traction of the walls was decreasing, resulting in him slipping down the walls towards the murky, burning acid.
"When pigs fly," he muttered, pulling himself up onto another ledge within the shaft. His feet were developing blisters, but his mindset was planted firmly on retrieving the treasure and reaching the end game.
He was losing air.
He reached for his pocket weakly, his right foot slipping into the acid. He yelled out a cry of immense pain, his foot burning. He daren't look at it, but he could feel the blood protruding from the wound.
"Jimmy," he cried horsely into the transmitter. "Help me. Shaft 4." His hand lost feeling, and began to blister. His transmitter fell from his grip, and the black liquid bubbled and spurted with the extra fuel.
"You cannot escape, young Lucian. You have not passed the final stage!"
That's all I've written, but with the 160 word limit I think I've done alright. (:
