Psychological Expert

"Mass hysteria?" Sir Deweyville, who had met many psychiatrists recently, ruminated over the term Klein had said.

Despite their curiosity, his butler, bodyguards, and servants didn't make a single sound since they had not been given permission by him.

As for Sergeant Gate, he looked towards Klein doubtfully as if he had never heard of that concept.

Klein controlled his habit of tapping the armrest with his fingertips and calmly explained, "Humans can be fooled easily by their sensory organs. Mass hysteria is a kind of psychogenic illness that is a result of tense nerves and other factors amongst a group of individuals as they influence each other."

The jargon he spewed out confused Sir Deweyville, Sergeant Gate, and the rest, causing them to subconsciously opt to believe him.