Seeing that the man had fixed his gaze on them, a strange chill ran through them.
They all became still, not daring to move, and held their breath, maintaining silence.
"Let's choose this one," said the man in the blue robe after looking at them for a while, and he reached out to grab one.
Seeing this, the person couldn't maintain their calm anymore.
But their struggles were obviously in vain, and they could no longer make any sound.
Their bodies flew towards the man in the blue robe, gradually shrinking in the process.
In the end, they truly turned into a small flying insect and fell into the man's palm.
The head of the flying insect still faintly resembled a human face, with an expression of extreme fear.
Gently pinched by the man in the blue robe, the human-faced insect emitted a buzzing sound from its trembling wings.
However, it was all in vain. The man in the blue robe held the insect in one hand and a black pill in the other.
The pill was many times larger than the flying insect, yet it was forcibly stuffed inside the insect.
The human-faced insect struggled in pain, forcefully swallowing the pill.
Its belly swelled many times over, becoming a giant round ball.
The insect's breath gradually weakened, but the suffering had only just begun.
After the pill entered its belly, it seemed to be digested, and its size began to decrease.
However, a buzzing sound, like a swarm of mosquitoes, suddenly resounded.
The body of the human-faced insect began to convulse uncontrollably.
Tiny black dots emerged one after another from its abdomen.
Looking closely, these black dots were newly born insects.
After emerging from the body, the insects didn't fly around randomly but stopped on the human-faced insect and greedily began to gnaw.
Soon, the human-faced insect was devoured completely.
The man in the blue robe shook his head, looking regretful.
"It seems the test failed. The potency of the medicine was probably too strong."
Saying this, he opened his mouth and sucked the black mist of the insect into his stomach.
Even though Li Fan had heard about the events in the Demon Refining Tower beforehand and was mentally prepared, he still couldn't help but feel a jolt in his eyelids.
The scene was too horrifying.
The man in the blue robe looked at the remaining black pill in his hand, seemingly a bit distressed.
"Should I try this pill again?"
He glanced at Li Fan and the others.
All three of them held their breath, immobilized.
After a while, the man in the blue robe sighed, "Forget it, it should be close enough, considering it was refined in a furnace."
With that, the man opened his mouth and casually threw the black pill inside his mouth.
After swallowing the pill, the man in the blue robe remained unaffected.
However, he became even more deranged.
He started muttering again, ignoring the three people bound in the air and talking about not having enough alchemy materials.
Among the three survivors, Li Fan remained silent.
Sikong Yi showed no expression.
The remaining person was already in a state of collapse.
"I should have died in Qin Tang's hands earlier. At least I could have died quickly."
Time in the Demon Refining Tower seemed to lose its meaning.
The lives of everyone depended entirely on the actions of the man in the blue robe.
After an unknown amount of time, the man regained consciousness from his deranged state.
Once again, he pulled out two pills from under his wide robe, but this time they were eerie green.
"Which insect should I choose for the experiment?"
The man hesitated this time, but his gaze landed on Sikong Yi.
"Let's choose this one!"
Li Fan suddenly became alert. He wanted to see what Sikong Yi was relying on to dare lead him into this perilous place.
To Li Fan's surprise, Sikong Yi didn't put up any resistance.
After being forced to transform into an insect and swallow the green pill, Sikong Yi turned into a puddle of green water immediately.
Sikong Yi was dead!