If nothing else, it could be good to ask any of:
What do Fruits and Breaths do?
Do the Concordat have any weaknesses? What would fighting them be like?
Is there a way there could be more dragons after us, or are we the last of our kind?
'Oh, those are the terms for the other two types of advanced dragons. "Fruits.." well, you could better term them 'Mind' dragons. "Breaths" are.. well, they'd be 'Body' dragons. Both have different abilities. "Imp".. well, you'll find that out soon enough.'
"Back in my time it was mostly fighting their servants and soldiers. They did have some powerful abilities, but they tried their best to keep the range open, using them to equip soldiers or buff troops. There were a couple of actions that got a few of them in close. They were very powerful, but not insanely powerful, and they kept some strong bodyguards, too.. The problem is they wouldn't stay dead. We got a couple of them, but they just came back. We figured the rest of the group could revive fallen members somehow.
..as for weaknesses.. nothing in general, and they had different members who were good at different things. Although there was one thing. None of them ever did any summons. People under them could use summons, but they never did any themselves, to my knowledge."
"Well, it's a big world, and there are other worlds, and there is the skies above. You've got the rest of your life ahead of you. I don't know any way you could lead to more dragons, but you've met me after maybe thousands of years. And you might beat the concordat who killed us all. Certainly not the time to give up yet.
...and for all I know they might have a few prisoners. They killed us all all the times I know about.. but I am in no way certain."
We've been collecting dragon forms. Anything we should know about doing that?
Does he know of anywhere or anything super cool from his time that might be an awesome ruin or hidden treasure thousands of years later?
That part is weird. Dragon forms shouldn't be collectable. There's something odd going on there.. which, eventually, you figure to be Farflame's intervention making it possible. Or something else, perhaps beyond or above Farflame. This arrangement was supposed to be unique, the double special form requirement on the seal simply something that's rare but not hugely rare among dragons.. but certainly rare enough that a random prisoner won't have it.
As for something or some place super cool..
"What, a unique vault containing the spirit of an ancient dragon not good enough for you?"
"Well, there is one thing. Do you know where Rishelka is?"
Nope. After some questions, you find out that it's on the western continent, up North, in the middle of a highland, abnormally warm, surrounded by high icy mountains..
"You mean the Pink Land?"
"That's what they call it now?"
"Yeah. It's marked that way on maps, and it's basically somewhere to stay the hell away from it, because it's got too many monsters. I want to go there sometime."
"Yeah, that's Rishelka all right. Way, way too many monsters. No dragon has ever explored it, it's too dangerous, though many have died. Still..
..some have gotten up high and flown over parts of it. Dozens of mana potions can solve a lot of problems. There's a few interesting places inside it."
The old dragon then tells you about three places inside the Pink Land. There's the Broken Sphere, which is the remains of a metallic dome, vaguely in the location marked as a ruin in the Pink Land. Then there's the Bramble Gyre, a vine-filled spiral further to the southeast which seems artificial. And the Forsaken Falls, a melting waterfall near the ice border in the middle of the Pink Land. It generates way too much steam, way too much water, and way too much heat, so there's likely something important to the Pink Land over there. Hmm.
Of course, you've got an ancient, mighty dragon telling you there are still way too many goddamn monsters there, and not knowing WHY there's so many monsters. As always.
To be continued.