The black vapor looked extremely thin and faint, but it gave Lin Yuan a deep sense of discomfort.
He instinctively wanted to avoid getting even a trace of it on him.
Just as the rising black vapor was about to drift into other parts of the Treasure Collection Room, the Mysterious Little Box in the center suddenly opened a crack and sucked it in.
The unsettling sensation instantly vanished.
But naturally, the contamination within this Retainer's Bone amounted to far more than that, and black vapor continued to seep out.
The Mysterious Little Box kept absorbing it as well.
"This seems to be... removing the contamination from the Retainer's Bone?"
At the sight, a thought stirred in Lin Yuan's mind.
He had never expected his Treasure Collection Room to have this ability.
The Mysterious Little Box really came through!
"But absorbing this contamination won't have any harmful effects on my Little Box, will it?"
Then Lin Yuan grew a little worried.
However, he carefully sensed its condition and found nothing unusual about the Little Box after it absorbed the black vapor.
It had neither been assimilated by the contamination nor used it as food or fuel.
Once the contamination entered the Little Box, it seemed to vanish into thin air.
"That's my Little Box for you!"
Only then did Lin Yuan feel reassured.
But he was also growing increasingly curious about what exactly was inside the Mysterious Little Box.
Unfortunately, he gave it a try but could not make the Little Box open even a fraction wider.
The Little Box still had only a barely visible crack open, calmly absorbing the faint black vapor.
"One day, I'll open it!"
Lin Yuan encouraged himself inwardly, then withdrew his consciousness from the Treasure Collection Room.
Removing the contamination from the Retainer's Bone