On the execution table, another big man lit a torch. The executioner placed the blade of the big knife on the torch and roasted it. The alcohol on the blade was evaporating creakily under the roast of the flame.

The face of the knife became red, and the executioner nodded to the big man, indicating that he could remove the torch. Now the temperature on the blade could make the incision on the neck of the criminal slightly burnt, so that the bleeding would be less, the blood would be fixed on the head, and the head would remain fresh for a longer time.

In short, because the skull is...