For Sword Casting Valley, an area shrouded in ghostly mists and a forbidden zone of life, the probing methods of the Dao of Sound, though affected, were less constrained compared to other methods.
But the moment Xu Yuan heard these serious words from the usually solemn girl Tianyan, he couldn't help but let out a low chuckle.
Initially confused by the sound, Tianyan's face flushed red and she said with a cold expression,
"The probing methods of the Dao of Sound have extremely strong penetrative abilities, we probably can't stay here any longer."
Xu Yuan raised an eyebrow, his eyes revealing a hint of contemplation.
The probing methods of the Dao of Sound in this world were somewhat similar to bats in his previous life, using sound waves to locate their surroundings, which meant emitting sound waves and receiving the echoes to determine the target.
In some ways, this method was indeed very strong, because its range was extremely wide.
