|Blackburrow is the main home of the Sabertooth clan of gnolls in Oceangreen. The Sabertooth clan has recently claimed this lair as their own, locking themselves away from human invaders and the dark plague that threatens the area.
To access this zone, request the task "Summary Execution" from Bracka Darkpaw. This will allow you to zone in. After completing that task, you will have permanent access to the zone.
For more details about the Blackburrow of old, click here. If you're looking for the present-day Blackburrow (the original), click here.
For a Seeds of Destruction overview, including progression information, click here.