Finish the funeral ceremony first, and then start a new task to help the blacksmith rebuild Wuslade (to be honest, this axe is pretty powerful, but it's cool to beat Sommer, the snow elf), and then go to the ancestral tomb of the comrades-in-arms group with Ella, farkas and Maskas, put Wuslade on the ancestor statue and enter the underground palace. Kill it all the way until you finally see the soul of the old man, use a head as a ritual, then kill the soul of the wolf to complete the task, and then the head can be thrown away from you.
It is recommended not to throw or sell (sell a wool with a value of 0). Farkas and Maskas, who were later tortured by the wolf spirit, can use their heads to restore human blood, but there are bugs here.
Some people reported that they had brought three heads, but they didn't use them up, and they became task items that could not be thrown away. Solution: Take only one head and leave the others in the box at home.
Others reported that the heads were not used at all after the ceremony. The specific method is: when restoring farkas and Maskas, only take one head, activate the altar, and quickly rummage through the backpack to find the head. If they still exist, throw them away, and then they pick up their heads to drive away their souls.
Finally, good luck.