Final Quest

You glance at the green dragon, who appears to be getting impatient, and at Alasse, who's just standing there quietly, not fidgeting or shuffling her feet or anything like that. You wonder briefly why the seer acts so adult-like, but now is not the time to ask a question like that.
You then look at the man. "Could you please tell us more about this place?" you ask.
"You mean about this palace?" the man questions.
You nod.
"It is a prison," the man explains.
Behind you, you hear a gasp, but don't turn to see whether it was Torai or Alasse.
"What kind of prison?" you hear Torai ask.
The man looks steadily at you. "A prison for dragons," he replies.
What now?