Most Lore and Legend Quests can be started either with a book or by examining one of the quest items. Find the book, Mayong's Cruelty: the Drachnids, using the location information above. Next, read the book, Mayong's Cruelty: the Drachnids, flip through all the pages, and accept the quest. Once you have accepted the quest you may place the book in your house. You do not need the book to progress the quest.
Find the following auto-updating pieces by killing Drachnid in any zone:
a drachnid blood, a drachnid carapace, a drachnid hair
Find and examine the following tradeable pieces obtained by looting Drachnid in any zone, or buying them from other players