Watching the tiny bugs transport pieces of meat, Dong Tianyu suddenly noticed the anomaly when the live chicken had died earlier.
When the chicken died earlier, it didn't squabble at all. It died so silently that Dong Tianyu initially thought that the rooster was just tired because it was dark, so it sat down to rest. If not for the gradual disappearance of the rooster's corpse later, Dong Tianyu wouldn't have noticed this circumstance.
In theory, unless one dies from illness or poisoning, there would be struggle due to pain in case of accidental death by other means.
However, the two live chickens died without struggling at all, disappearing silently like a sculpture eroding away.
Wanting to investigate intensively, Dong Tianyu again took out a live chicken from the Cave. Having obtained clues to the death of the rooster, there was no need to smear the chicken's body with invisibility solution.