Lin Jin and Tianzun waited a little longer until there was no sound at all outside. Then, they exchanged glances and decided to take a look.
The cave was a dead end with no other exits. Due to the immortal mountain's unique geological traits, ground digging spells didn't work here so the only way out was to leave from where they came in.
Being a diligent man, Tianzun cast a spell at the cave's entrance, consolidating a spirit bird to observe the situation outside in their place. If he noticed any dangers outside, they would then stay in the cave.
Tianzun had a startled expression on his face when he used the bird to survey the situation outside.
"Come, let's go outside." Tianzun pulled Lin Jin out. Upon leaving the cave, Lin Jin understood Tianzun's shock.