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Undeath doesn't equal invincibility, even if each ghoul had its consuming parasite placed differently, making it difficult to locate and eliminate. However, there were still numerous ways to stop their actions, such as crushing their joints, stripping them of their ability to move, and then using the immobile ghouls to block the train's passageways.
As long as the passage to the VIP carriages was held, the enemy aiming to capture hostages would struggle to act further—Roland's reasoning was indeed correct, and using the ghouls to block the passage proved to be effective. But, it seemed that the enemy had also found a countermeasure.
Crack crack crack!
From the belly of the collapsed ghoul on the ground came a loud chewing noise. The eerie sound continued for about 10 seconds, during which the ghoul's stomach swelled up. Five or six fog fish burst from the abdominal cavity before they could even flick their tails; a string of 7.92mm machine gun bullets tore them to pieces.
