From at least the time of the Northern Sung Dynasty in DEMIGODS & SEMIDEVILS, the 1 Yeung Finger Technique of the Deun Royal Family of Dali Kingdom was revered as one of the top martial arts in wulin. 1 Yeung Finger Technique's elite status continued through the Southern Sung Dynasty era of LEGEND/RETURN OF THE CONDOR HEROES. By the time of HEAVEN SWORD & DRAGON SABRE, the only known remaining practitioners of 1 Yeung Finger Technique were Chu Chung Ling and Mo Lit (descendents of Chu Tze Lau and Mo 3 Tung, respectively). With the deaths of Chu Chung Ling, Mo Lit, and their daughters in HSDS, did the 1 Yeung Finger Technique reach the end of the line? Was that the extinction point of the Deun Royal Family's signature martial art?
HSDS seemed to be the era where the great martial arts of the Sung Dynasty died out: both Hong Lung 18 Palms and 1 Yeung Finger Technique seemed to be lost at the end of this period.