This Miao Shou truly excels both in offense and defense; no matter how great a disturbance it causes, it benefits the Mental Path.
Because of Hong Shanling's double identity.
On one hand, she is the Imperial Princess of the Great Wilderness Dynasty, sharing the same mother as the Crown Prince, fitting the identity required to kill this traitor.
On the other hand, she is also the Tiandu Saintess. Even if it stirs the Dynasty's displeasure, at most, the storm can only reach below the Heavenly Capital Sky Dam, not harming the Heart Pavilion in the slightest.
Hong Shanling fell spectacularly into the trap.
Moreover, in a face-off, she accidentally gained a surprise: using the Heavenly Capital Immortal Mirror Technique, she discovered that Li Chengnian wasn't actually Li Chengnian, but a disguise.
According to common logic, the issue could have been wrapped up, with the audacious thief torn limb from limb, with his entire clan being executed.
