Interrogating Tie Niu

Hearing that it was actually pills that managed to make Tie Niu and others breakthrough their bottle necks, Lin Mu narrowed his eyes.

'Those kinds of pills are not easy to obtain and are very expensive to make. Even one of the pills that can allow one to reach the nascent soul realm from the core condensation realm would be priced for tens of thousands of spirit stones.

Not to mention, one's that can allow one to breakthrough to the Dao Shel realm. Those kinds of pills might not even be available for sale…' Lin Mu thought.

He looked at Tie Niu and asked further, "So you simply ate those pills without checking?" 

"Of course, what else could I do? I had no reason to suspect it since my son was the best proof they worked. I knew very well that he did not have the talent to reach the Nascent soul realm. His road was supposed to end at the Core condensation realm.