You might want to do The Dusty Blue Stone, a prerequisite for Restoring Ghoulbane while on this quest. It requires you to get 40 rock samples from wind swept stones, which can be done at the same time as one of the steps on this quest.
You also might want to do Journeyman Service as it requires you to harvest 50 harvestables in The Thundering Steppes.
Mine 10 granite pieces, an uncommon/rare harvest from wind swept stones in The Thundering Steppes. You can find many of these around here ( 1249, 254, 269 ) Copy/waypoint 1249, 254, 269.
Scribe the Granite Tomahawk Recipe. At any forge, combine the pristine piece of granite with a piece of severed ash, a sparkling flower, a glimmering coal, and the Cracked Stone Hand Axe to craft a Granite Tomahawk that creates a dull tomahawk.
sparkling flower is not longer harvestable. This quest cannot be completed unless you purchase the flower from another player who has them.
Enter the Cove of Decay and slay the The Octagorgon for its ink. Note that this giant octopus cannot be pulled out of the water, and shortly after engaging it, a group of heroic skeletons will spawn.