Lin Yun was not in a hurry to talk to the fat kid. He observed the bloody scythe of death for a long time. He was pretty sure that it shouldn't have been capable of knocking the soul out of the body.
A creature's soul was complete. Human beings' souls were in their heads. The undead creatures' souls were their soul fires. They were not shadows that overlapped with bodies.
Even the slightest injury of the soul would be very serious. If some of it was cut off, it would surely mean death, except for the strongest creatures.
Although the Leopard Tail Worm was special, it was certainly not special in that aspect. Lin Yun detected vividly that the scythe of death didn't cause much injury to its soul when it cut off part thereof. It seemed that the scythe only disabled that part of the soul.
When the fat kid's tail was cut off, it became a burden. The tail became as good as nothing. However, the kid's soul was not badly damaged. It only hurt for a moment.