Npc... - Sees What The Dragon Hoards, Draws The Maps
She never speaks (to avoid being heard by the dragon). She communicates solely through her incredibly detailed, charcoal-smudged maps that include notes like "Watch out for the loose gold coin—it squeaks."
The NPC sells the party a map of the hoard, but the dragon moved half the treasure to a different chamber yesterday. Sees what the dragon hoards, draws the maps NPC...
The NPC didn't just draw the map; they accidentally stole a single, sentimental item from the hoard, and now the dragon is hunting anyone who carries that map. She never speaks (to avoid being heard by the dragon)