At the moment Long Ba and Feng Jiu self-destructed, he lost sight of the scene and was unaware of the situation above ground.
He wasn't sure if the Ghost-eyed Child survived or if he was searching for him all over the city.
What he could do was keep digging tunnels, ensuring his own safety.
"It's close... first dig five thousand feet deep, then dig outwards beyond the array..."
Lin Chen silently thought.
He was uncertain whether the Ten Thousand Ghosts Bewitching Array could cover the underground.
At this depth of several thousand feet underground, he found it difficult to determine his position.
...
Several days later.
Deep down at five thousand feet, Lin Chen stopped his actions.
"Hmm, the depth should be about right... time to dig towards the direction outside the array..."
Lin Chen barely sensed a little and could roughly determine he was digging in the southeast direction.
So he continued to dig in the same direction.
