Reidoth is Venomfang?

Hello, running LMOP: SO tonight, and the party are just about to hit Thundertree, to find Riedoth. Might be slightly contirved, but I had an idea to make Riedoth, a human form of Venomfang, woth explanation being the magical element of the tainted ground where the dragons now resides, has impacted them.

the Druid exists to determine adventurers from raiding the town. the dragon consumes those foolish enough not to heed that warning. the magical taint inherits the remains of those fools to further fortify the lair and it's surroundings.

Could use some help expanding on these themes, or is it too clunky?