I only received this quest after finishing Testing the Gauntlet, even though I had +7500 faction with the Gwalnax Brigade.
Steps[]
Slay Nortalz Di'Zok or his progeny, found in Chardok Palace at ( 1061, -47, 347 ) Copy/waypoint 1061, -47, 347
Slay Kromikus Di'Zok at ( 983, -50, 228 ) Copy/waypoint 983, -50, 228 or his progeny, found in Chardok Palace at ( 988, -50, 226 ) Copy/waypoint 988, -50, 226
Slay Historian Silren Di'Zok or his progeny, found in the Chardok Library at ( 957, -77, 613 ) Copy/waypoint 957, -77, 613
Slay the matriarch of the Brood of Di'Zok, Queen Velazul Di'Zok, found in Chardok Palace at ( 1310, -67, 230 ) Copy/waypoint 1310, -67, 230