Feed the Fel-Tainted Morsels to the Lost Ones' captured animals. Then return the leftovers to Cersei Dusksinger at Stonard in the Swamp of Sorrows.
1x Captured Crocolisk Fed
1x Captured Jaguar Fed
1x Captured Tarantula Fed
I'm perfecting a weapon to use against the draenei and you're going to help me!
The Lost Ones are the backward cousins of the draenei, and I've been experimenting on them. I just need you to feed some fel-tainted morsels to their captured livestock. In turn, when they slaughter and eat the animals, they'll be cursed! That'll show that stuffy Anchorite Avuun at the Harborage!
Go now, hurry! You'll find the Lost Ones and their caged animals to the northeast at the Fallow Sanctuary.