The quest listed as a prerequisite, The D'Morte Family Crest, is not required to start this quest. Although in terms of lore progression it is recommended that it be started beforehand.
Important Note: Hailing the wounded scouts before they die may bug them, causing them not to drop the rock sample
Steps[]
You must mine four rock samples inside The Tombs of Night: A Search For Answers. The rock samples are dropped from wounded scouts in the zone. These are spawned by killing specific named monsters. Once the named monster is dead, simply mine the rock sample that spawns near the scouts body. The scout will always be found near their related named mob.
The Mold Reaper: Spawns at the end of a ring event involving mist grinnin sporechanters at ( 78, 6, 3 ) Copy/waypoint 78, 6, 3
Lureclaw the Angler: Spawns after killing all the mist grinnins around his spawn at the base of The Forgotten Tears around ( 47, -44, 106 ) Copy/waypoint 47, -44, 106, as well as the rest of the mist grinnins on this level.
Chief Strongarm: Spawns at ( 28, -25, 59 ) Copy/waypoint 28, -25, 59 after killing all mist grinnin packs in The Maw of Mortality, then the mist grinnin summoners that spawn running towards the center of the Maw, and lastly the mudrakers that spawn around the NPC version of Chief Strongarm.
Dvith N'Zur: Kill him to spawn the wounded scout, who appears in the central pit of The Hand of the Crypt. ( -74, -32, 116 ) Copy/waypoint -74, -32, 116