Tripping Over Thin Air (Private/Training)

    The burning sensation overwhelmed him, and Mase was in excruciating pain, but he kept running. He couldn't stop, he wouldn't stop. Mase's legs had gone past feeling sore, and they burned. His legs burned more than his lungs. more than his whole body combined. It took all of his strength just to keep from screaming, just to keep from falling unconscious. Mase ran and ran, but... he had to stop, or he would fall unconscious, and falling unconscious meant getting beat up. So, Mase stopped, his head spinning, and his body burning. He gasped in pain, each ragged breath straining his burning lungs. He clenched his eyes shut and took a deep breath, and the pain started to subside. The burning in his body subsided, instead leaving a sore ache all over Mase's body, and the spinning in his head stopped, letting him once again think clearly.
    He was faster, he knew that much, but he was not fast enough. Not yet. He needed to be faster, fast enough to outrun anyone. So before Mase's body could even fully recuperate, he began to run once again. But to his surprise, even after running at length, Mase's body didn't hurt, not very much, at least. His stamina had increased, but Mase knew that he wasn't fast enough yet, and stamina didn' matter, not without speed, at least. Mase could think of only one way to better his speed--sprinting. Until now, he had been lightly jogging, but once he started pushing his feet against the ground harder, he increased to a sprint. Mase could feel his stamina getting drained away, but it didn't really matter, he was so much faster now. Even though Mase's stamina was being drained away rapidly, he still managed to last for a very long time, sprinting for more than 15 minutes without feeling any fatigue whatsoever.
    But he was still human, and he still felt fatigue, eventually. Mase himself was not sure how much exactly he had sprinted, but he knew he had sprinted for a while before the fatigue started to kick in. However, this time, the fatigue wasn't nearly as bad as it had been the previous time he had run. He felt a little bit of burning in his lungs and a bit of soreness in his legs, but he was able to keep running, so long as he slowed himself down, just a little bit.