Finding nothing with this search, the next logical step is to kill farmers in The Commonlands until some clue to Gyberg's whereabouts can be found. This is an uncommon auto-update.
The farmers can be found in the fields around ( -208, -46, -160 ) Copy/waypoint -208, -46, -160
The clue found points to the mausoleum near the nomad camps in Dead Man's Valley.
This is northwest of the Crossroads, west of Dog Trapper Lake at ( 161, -48, -740 ) Copy/waypoint 161, -48, -740. Examine the skeleton there on the ground before the mausoleum to find that it is the remains of poor Gyberg.
Return to Lavic N'Gam ( -79, -25, 171 ) Copy/waypoint -79, -25, 171 to report these findings. This ends the quest, and opens the next in the series, Like a Ring in a Haystack.