S05E16 - The Four Treasures: Dragonheart Core by Adam Atenburgh 

To take a dragon's hoard is to challenge death.
The greatest of the sea-drakes wakes, curled on his silver throne; but there is no silver. His hoard is stolen. He rises, screaming, and chases the thief to the ends of the world-only to be shot from the sky.
But dragons do not die easy, and never one with such festering hatred. A dungeon core rises from his corpse.
If he intends to survive so near the cove of pirates that slew his past self, he'll need to master his powers-and quickly. For these pirates are dragonslayers; they won't be felled by mere mushrooms or spiders.
Beneath the lawless Calarata, the young dungeon core will have to fight to survive; and one day, he will return death to the man who killed him.
Author Adam Atenburgh:
www.royalroad.com/fiction/544...
Narrator Benjamin May:
www.benjaminmayactor.com
/ benmayactor