Originally Posted by
Ken Cheng
I'm pretty confident that the 9 Yum Jen Ging that the Yeung Family had possession of after the conclusion of ROCH was the full version because it also included Wong Seung's counters to the martial arts he indexed in the manual. Though Jin Yong never made it explicit, we know that at some point, there must have been an exchange of martial arts artifacts because Gwok Jing and Wong Yung gained possession of the Heavy Iron Sword, the Gentleman Sword, and the Lady Sword (which they would use to forge the Heaven Sword and the Dragon Sabre). My conclusion is that in exchange for those weapons, the Gwoks provided the Yeungs with the full 9 Yum Jen Ging manual.