Defeat Shadra at the altar of Shadra'Alor, then bring her venom to Apothecary Lydon in Tarren Mill.
Take his parchment, and read it at the altar of Shadra'Alor, deep within the witherbark realm in the Hinterlands. This will summon Shadra the spider god.
Sweet, you got it!
Upon completion of this quest you will gain:
- 8450 experience.
- 500 reputation with Undercity
This quest starts at Durotar and ends at Hillsbrad Foothills