Probing blindly, he had taken scarce two steps when he encountered the resistance of a force screen. Judging from the condensation, he’d been imprisoned here for a significant period of time.
Impenetrable as such energized barriers were, they allowed nothing, even on the molecular level, in or out. He was, quite literally, marinating in a potentially incendiary mix of his own carbon dioxide, expended heat and the other effluviums generated by any living organism.
He must find the means to escape, and soon, else he would not be alive long enough to contemplate the consequences of failing to do so.
This story was written for the weekly Tuesday Tales flash fiction prompt: incendiary.