At the end of ROCH, it was revealed that the 9 Yeung Jen Ging had been stolen by Siu Seung Tze and Wan Hak Sai, two of the Mongols' mercenary warriors. It was a mortally wounded Wan Hak Sai who concealed the 9 Yeung Jen Ging into the skin of a gorilla, meaning that he was the last person to have known the whereabouts of the 9 Yeung Jen Ging until Cheung Mo Gei encountered the gorilla 100 years later. Cheung Mo Gei's encounter with the gorilla probably would not have occurred had he not been chased into one particular cave by Chu Chung Ling, descendent of former Dali Prime Minister Chu Tze Lau.
So Wan Hak Sai was responsible for the disappearance of the 9 Yeung Jen Ging, and Chu Chung Ling was partially responsible for its rediscovery.
The odd thing: veteran TVB actor Tam Bing Mun played Wan Hak Sai in ROCH '83 and Chu Chung Ling in HSDS '86.
So in the 1980s, Tam Bing Mun played for TVB both the character that "lost" the 9 Yeung Jen Ging and the one who helped to find it again.