The Rotten Grotto is a large grotto in Darkheart Thicket. It has been tainted by the Emerald Nightmare, and the once-powerful druids who resided here have all succumbed to its madness.
- Entering the inner Grotto
- Shade of Xavius says: Those who challenge me only speed themselves to an agonizing death.
- Malfurion Stormrage says: So says the shadow of Xavius.
- Shade of Xavius says: Be still, worm! I will deal with you shortly.
- On the map, the zone is called "The Rotting Grotto". In-game, it is called "Rotten Grotto".
- The exterior entrance to the instance is a cave on the southern side of the overall area, but adventurers end up coming out of a cave that leads further north.