[A/N: I've exams coming in few day, so excuse me if I delayed too long.]
...
"Ahem," the elder coughed, his eyes narrowing slightly in concentration. "The answer is Love."
The answer left his lips with certainty, as though the riddle had no other solution but this. It fit.
The skeletal face above paused, its glowing eyes narrowing in curiosity.
"Love, you say?" It sounded almost… delighted. "Is that your final answer?"
The elder didn't hesitate. "Yes."
The skeletal face chuckled, a low, rasping sound like bones scraping against one another.
"That's a great answer," it mused, the sarcasm heavy in its tone.
A collective sigh of relief swept through the soldiers. They straightened, hearts easing for a brief moment, as the looming pressure of stone and green light seemed to loosen.
"But it's not the right answer!" the skeletal face laughed cruelly, its voice echoing off the walls.
