Spoiler warning: Quest and/or game spoiling details follow.
After delivering the 4 broken amulet pieces
to A Sweaty Cyclops
, you can collect Koshei's Ancient Amulet
from A Sweaty Cyclops
after a 24-hour (real-time) wait. You must use it on Koshei
's dead body in order to defeat him, but you can also just sell it for the same price as or sometimes even higher than the Blue Legs
, the reward of the quest, to other players. Part of Koshei the Deathless Quest
Spoiler ends here.