When Cao Duantian devised this set-up, his father and the Sect Patriarch of the Tiger Subdue Sect were not in the know. Cao Duantian thought that Jiang Yi was definitely going to die. Furthermore, the one who acted was not him but Qiu Bai, Huo Gu, and Meng Da. Even if Mo Shen pursued the matter, it would not implicate him.
Taking 10,000 steps back—even if Mo Shen somehow managed to piece the whole incident together and guessed that the mastermind was Cao Duantian, so what? Without proof, would Mo Shen dare to go to Tiger Subdue Mountain to create trouble? Sect Patriarch Cao was not known as the second strongest in the Snow Region for nothing.
What he did not expect was that the formidable martial artists from all three races—combined with the Fire Chi Race that could effectively negate Jiang Yi's Icebound Thousand Miles—were ultimately not able to kill him. Even Mo Yao'er had escaped. Jiang Yi had even annihilated the formidable martial artists from the three races!
