Speak with Lead Prospector Durdin at Dustwind Dig in the Badlands.
I've got an idea, but it's a bit of a longshot. Thankfully, long shots happen to be a specialty of mine.
North of here, the Explorers' League has uncovered a new set of titan ruins beneath the sands. If there's anything older and wiser than dragons, it's titans. Heck, I've heard rumors that the titans CREATED the dragons.
Talk to Lead Prospector Durdin at the camp to the north. He'll have more information than I do about these titans.
What did I tell you? It's a long shot.
You will receive: 7
Titans? You want to know about titans?
You came to the right place, <lad/lass>. We're on the brink of somethin' big.
Head north past the Scar of the Worldbreaker to Dustwind Dig. Durdin is in the middle of camp. Don't forget the flight path!
Optional breadcrumbs:  Hero's Call: Badlands! /  Warchief's Command: Badlands!
-  Fuselight, Ho!
-  To Fuselight Proper
-  Easily Swayed
-  When the Going Gets Tough, Cheat
-  It's Goat Time, Baby
-  A Strange Request
-  First Sample: Wild Eggs &  Second Sample: Whelps
-  Lifting the Veil
-  Third Sample: Implanted Eggs
-  Rhea Revealed
-  The Venerable Doctor Blam
-  Troggish Troubles
-  Dustwind Dig /  Bloodwatcher Point
-  All's Fair in Love, War, and Archaeology /  It's Not About History, It's About Power
- Complete all of
-  Ancient Protectors
-  The Titans' Trove
-  Return to Blam
-  Into the Dragon's Mouth /  New Kargath
-  Down to the Scar (optional)
-  The Day that Deathwing Came
-  The Day that Deathwing Came: The Real Story
-  The Day that Deathwing Came: What Really Happened
-  The Swift, the Fierce, and the Stout /  The Bad Dogs
-  The Wrath of a Dragonflight
-  Their Hunt Continues
-  The Sorrow and the Fury
-  The Hidden Clutch
-  Rheastrasza's Gift
-  Devastation
-  The Egg Lives On