The Tale of Hraxian

I forgot what the specific prompts are, as Veritistrasz stops periodically for you to ask him further (and also offers you the option to cut to the end and skip the dialogue), but here's his entire thing:

Veristrasz: What Sytorian did...not all of the obsidian flight were depraved. There was good in them too. I will tell you of a hero who defended the weak and saved many.
Voraxion: Tellywin, could you write this down? I want my flight to hear of this as well.
Tellywin Sharpfizzle: Of course.
Veristrasz: This is a tale set in the final battle with the djaradin elders, where Neltharion banished them.
Veristrasz: This is the tale of Hraxian, and how he died.

- When prompted about who Hraxian was
Veristrasz: He always put up with the antics of the young with a smile and a wink and he was loved for it.
Veristrasz: Hraxian was one of the oldest black dragons. it was said only the Earth-Warder surpassed him in strength among his flight. But for all that, he was a gentle soul.
Veristrasz: He would sneak whelps treats when others were not looking, and he would lift the mood of any he spoke to.

- When prompted about the battle
Veristrasz: The draconic army faced off in a final stand against the djaradin elders. The army needed to buy Neltharion time to enact his plan.
Veristrasz: The battle went...poorly. The djaradin's elders' mastery over earth and fire was catastrophic; they laid waste to the draconic forces.
Veristrasz: One of our flanks crumpled under a devestating attack. As the djaradin closed on our medical wing, Hraxian flew to help.
Veristrasz: As he landed, he looked towards the wounded and the noncombatants.
Veristrasz: He looked towards me.

- When prompted about Veritistrasz being at the battle
Veristrasz: I was a young dragon assigned to healing duties. Hraxian was my idol growing up. Heh, I was one of the whelps he used to sneak treats to.
Veristrasz: You know, I do not remember what the treats were anymore. it was such a long time ago. I have a vague memory of lemon...and tart hochenblume?
Chef Butterfingers: After this, let's talk. See if we can recreate it.
Veristrasz: I would like that very much.

- When prompted about what happened next in the battle
Veristrasz: The djaradin have a need to prove themselves the strongest - a weakness Hraxian exploited.
Veristrasz: Hraxian roared a challenge of single combat to the djaradin: a challenge they readily accepted.
Veristrasz: Hraxian slew his opponent with one swipe of his claw and bellowed the next challenge.
Veristrasz: One by one the djaradin faced Hraxian, and one by one they fell.
Veristrasz: As the djaradin strode towards him, I could feel the djaradin armies roar deep in my chest.
Veristrasz: I could feel their hate, their lust for his blood, their yearning for his skull.
Rupert, the Gentleman Elemental: They sound like absolute louts, no different than the oafish djaradin of our time.
Veristrasz: You are not wrong. Though they started confident, as each champion facing Hraxian fell, the cheers of the djaradin died a little until they began facing him in silence.

- When prompted about what Veritistrasz did at the time
Veristrasz: Nothing, I could only watch. Breaking single combat was not an option. Many of us tried to heal him, but he warned us back each time.
Veristrasz: Hraxian felt for what felt like hours, though...it cannot possible have been that long.
Veristrasz: Scores of djaradin weapons had left their mark; his blood and scales littered the ground.
Veristrasz: Even so, he made them pay for it. Each challenger had to clamber over their dead to meet Hraxian.

- When prompted about how Hraxian died
Veristrasz: It was not a djaradin who killed him - not an individual one at least.
Veristrasz: After his final battle, he stood silent. The djaradin waited for his next challenge, but it never came.
Veristrasz: Hraxian died on his feet, with his eyes open, Staring them down.
Veristrasz: Each battle had drained his blood and his life until there was none left.
Veristrasz: As the djaradin waited for the next challenge, Neltharion banished the elders, and the djaradin fled.
Veristrasz: However, a few djaradin advanced. They collected the weapons of the fallen and planted them in the ground around Hraxian.
Veristrasz: They left, leaving his body untouched. It is the only time I have seen djaradin behave in such a way to a dragon.

- After thanking him for telling you the story
Earthmender Narvra: Why is it we always lose the best of us...
Veristrasz: I know how you feel. We hold onto the dark memories, where we remember those we loved and lament we could do nothing to prevent them leaving us.
Veristrasz: We miss them. We miss their laughter, their smile, their quirks. We focus on our loss, and the fact they are no longer with us.
Veristrasz: I have lost so many. But thanks to [Player], I am trying to change how I think.
Veristrasz: Instead of lamenting that loss, I try to be glad I had those memories in the first place.
Veristrasz: Trying to break my old patterns is a battle every day. I do not always succeed. Since meeting [Player], Voraxian, and all of you though? I am finding it easier.

Showed up for me after doing the Dragonscale Camp quests (and having returned the vase from Zskera Vaults with Hraxian on it to Veritistrasz). Not sure if I had to wait for a daily reset, but I didn't notice it until the next day.

After listening to the story (and turning in the quest), there's a followup that awards [item=204220].

This quest is a little awkward as it's not always clear when Veritistrasz has finished talking and you need to prod him for the next bit.