Overview
Call of the Wild is an unmarked secondary quest in The Witcher 3: Wild Hunt, set in the forest just east-southeast of the Arinbjorn signpost on Ard Skellig, in the Skellige Isles.
What happens
The woods are home to a large pack of white wolves. At night the pack is joined by ulfhedinn, the werewolf-like berserkers of Skellige legend. Kill them all to complete the quest. Come prepared: the ulfhedinn only show up after dark, and a large pack can overwhelm an unprepared witcher.