These investigative talismans have no other purpose; their sole function is that the light they emit is extremely harmonious, allowing them to unload force, thus making them hard to destroy. Once destroyed, they will feedback their own annihilation to the practitioner in batches corresponding to their division.
In other words, they are quite useless.
Yet, in the current circumstances, they are quite effective as a means of investigation.
After releasing these talismans, one only needs to know which talismans have not been annihilated, then proceed along the areas which remain intact.
Though it's uncertain one would definitely find a way out, at least it ensures safety.
After releasing the talismans, Wang Ba also activated the Wind-Driving Staff, quietly hiding, waiting for Yu Wuheng's return.
No one knows how long had passed.
A dark red stream of light finally flew back; it was indeed Yu Wuheng.
Seeing the light left by Wang Ba on the spot, he was slightly surprised.
