As they were immersed in their own emotion, the "true Dragon Race" had already crossed the Cloud Sea in the high skies and arrived at the Tianshu Pavilion at Silent Mountain.
Finding a needle in the sea was naturally strenuous, but if one could employ "Omniscience," precisely locating that needle was not an impossibility.
The Dragon Race, always more adept at breeding than socializing, were characteristically proud and rigid, making the loss of the Dragon God's Relic a matter difficult to speak of. Furthermore, the Omniscience of the Tianshu Pavilion was not to be used indiscriminately, which is why for so many years, the Dragon Race had never resorted to such a method.
In fact, apart from the higher echelons of the Nine Heavens Immortal Sect, no one would consider "Omniscience" a normal technique to be used. It was only thanks to his master's influence that Chu Liang first thought of it.