ROCK OF SHIN TZE

The Rock of Shin Tze was an ancient Chinese artifact from the dynasty of the Wish Child. It appeared as an irregularly shaped rock about the size of a fist, but legend stated that the true Wish Child would find the soul of the Rock of Shin Tze and bring a sign from the rock.
The legend of the Wish Child is centuries old and states that if one links his soul to that of the Wish Child, he will be granted immortality. Although most people no longer believed the legend, there were a few who did, and among them was Lee Wenying, an elderly Chinese businessman who sought to achieve immortality for himself.
When Stone, a criminal, thief, and swindler, made the acquaintance of Paul Chan, a 14-year-old boy from Santa Monica who had a similar backstory and appearance to the legendary child, he convinced Paul to portray the Wish Child in a scam that would bring them a significant profit. Lee Wenying hired Dr. Shen Wei, an expert in the study of the Wish Child legend, to meet Stone and Paul in Chinatown and to determine the legitimacy of their claim.
Dr. Shen produced the Rock of Shin Tze as a test, and Paul deftly switched the rock for a small block bearing the sign of the Wish Child. His sleight of hand was enough to convince Dr. Shen that the Wish Child had indeed returned in modern times, and Shen delivered the news to Lee Wenying, who arranged with Stone to meet the child.
Cross Reference: Paul Chan, Chinatown, Lee Wenying, Shen Wei, Stone, Wish Child
Episode Reference: The Wish Child