If Orson's memory serves him right, the Flame Dragon's Nest is a perilous place, located right next to the Flame Demon Volcano.
This is the ancient lair of the fire-type dragons, and at least three Flame Dragons have made it their home.
Empress: "Luckily, you're only tasked with retrieving her brother's remains, not actually slaying the dragon. Otherwise, the difficulty would be at least hellish."
ShatteredCrown: "What's the big deal about slaying a dragon? My master has done it before. What's a lousy dragon? Just bring one, I'll handle it!"
Orson: "Good disciple, you've graduated. I'll oversee you, and you can try slaying it yourself."
Orson nodded seriously, but ShatteredCrown immediately backed down: "No way! I want to watch my master's heroic stance some more. Dragon-slaying can wait until my second awakening!"