D&D 5E: The Dryad's Dragon - Premise

On the ragged fringe of an Empire they built their brutal wall and named it for their distant king.

The Clans know nothing of kings.

The Clans name it Hammerwall, a stark and fundamental refusal of hard stone and harder men, winding through the foothills of the Hartshorn Mountains like a great stone serpent, blocking the passes and closing the trails into the broad and fertile plains of the Clanlands, its stone ramparts bristling with the spears and swords of the luckless and disaffected, cravens and killers, the outcast and abandoned dregs of an Empire.

A thousand thousand horses could not breach that wall.

But a small handful of determined souls? There were ways.

On the ragged fringe of an Empire the Clans have been pushed back against the unforgiving peaks, back against the broken chasms that crack its sweeping boreal forests, back against the unseen horrors that ride the mists and seep like death from the black and shattered ground.

In the gathering dusk a baby wails and is abruptly silenced, and every man makes sure it is stone beneath his feet and not naked earth. The Eyeless approaches, her blind head shifting from side to side, tasting the twilight. Will the Wyrd she speaks be a Clan Wyrd, or has yet another child been born to walk the Wyrd of the Wanderer?

Will this child be the one to wake the Dryad's Dragon?