Kill Broodmother Slivina and return to Dorian Drakestalker at Dorian's Outpost.
Broodmother Slivina's likely to be a snarling ball of teeth, spikes, and talons. You've gone and stolen her children away and no mother takes kindly to that.
'Tis true they hatched from eggs, but she loves the little beasts no less than your mother loves you.
She'll be desperate and fierce in equal measures, everything Hemet loves in a target. You and he, along with that mammoth, should be a match for her.
She's on her perch at the northern edge of the Savage Thicket and hungers for revenge.