A cave within a cave, this is extremely rare.
Huang Xiaotian had never heard of it, but it was different for Lin Chen. He loved reading, so he once read about a similar case in a historical anecdote.
Someone had once ventured into ruins and encountered such a cave within a cave, and it made him a fortune, reading much like the protagonist of an online novel.
At the time, Lin Chen didn't believe it, but then he saw further documentation in another book that convinced him.
After it was exposed, some people also tried to get rich, but ended up nearly losing their lives instead.
The reason Lin Chen thought of this was also related to some mystery novels he had read on Earth, such as the common grave within a grave.
However, Lin Chen naturally did not know the formation principle of such a cave within a cave, but he guessed it to be so.
Huang Xiaotian was also deep in thought.
Although the cave within a cave theory is somewhat novel, it aligns with all current speculations.
