I immediately turned my attention to the croupiers' footwear. Indeed, their shoes were identical. At the very tips, a minuscule camera was cleverly concealed. My perplexity, however, remained.
I addressed Bald Liang directly. "Brother Liang," I inquired, my tone sharp, "how does this camera achieve a perspective beneath the table's surface?"
Liang, steadfast in his denial, maintained his indignant posture. He glared at me, neck rigid. "I don't know," he retorted, his voice thick with defiance. "They only told me this device could see through the cards when I acquired it from the south. I don't care about the mechanics; all I cared about was its efficacy."
His response seemed genuine. My query, however, remained unanswered. The enigma lingered, baffling me for a considerable time.
Resolution came unexpectedly, through an encounter with a venerable figure from a renowned Guangdong gambling sect. Upon recounting the incident, he provided the answer.