Researcher Stena:
You're smart. That's good. Go to Dragon Valley, defeat the Dragon Hatchlings, and bring back 50 Hatchling Flesh.
These hatchlings are very weary. When they are attacked, they will flee nearly Dragon Vortex, and transform into Leopard Dragons. You can also obtain Hatchling Flesh by slaying these Leopard Dragons.
Bring back what's been asked of you, and you will receive your reward. No questions necessary.