- "Reports of peddlers and pawns attacked by cyclopes have become a daily matter. The duke has dispatched a force from Gran Soren, but the brutes are vast in number. There have been sightings near the falls, and in the south. Go and thin their ranks."
WalkthroughLightning, so using Lightning based attacks or enchantments are an effective way to take them down.
Despite the quest mentioning South Gransys and The Watergod's Altar as locations, any Cyclopes slain will count towards the total needed to complete the quest.
Cyclops spawn locations are: