Reidoth the Druid

Currently camping at the Ruins of Thundertree ,

This small house appears to be in better condition than the ruined and dilapidated structures nearby. The doors are reinforced with heavy iron bands, and thick shutters protect the windows.

Reidoth is a gaunt, white-bearded human who doesn’t use two words when one word will do. Though he receives very few visitors, he is reasonably hospitable. Reidoth is adept at staying away from the ash zombies that overrun the village, as well as avoiding the area’s mutated plants. He knows that dangerous spiders lurk in the ruins at the base of the hill, and he suspects that someone is hiding out on the eastern side of town—he’s seen “folk in black masks and cloaks” (the cultists) skulking around. However, he is currently most concerned by the fact that a green dragon has moved into the tower (area 7) since the last time he was here. He warns the characters of all these threats, and suggests that they leave Thundertree before they get themselves killed.
Developments

If the characters ask about Cragmaw Castle, Reidoth gladly provides directions. He is a member of the Emerald Enclave, a widespread group of wilderness survivalists who preserve the natural order while rooting out troublesome threats. The enclave works to restore and preserve the natural order by keeping the elemental forces of the world in check, preventing civilization and the wilderness from destroying one another, and helping others survive the perils of the wilds. The goblins are a threat to the delicate balance.

If the characters ask Reidoth about Wave Echo Cave, he will not divulge its location but will offer to guide the party there in exchange for a favor: he wants them to chase off the dragon in area 7. If they succeed, Reidoth will honor his part of the agreement but will not accompany the party inside the mine.
If the characters attack him for any reason, Reidoth transforms into a gray squirrel and scurries out of the cottage through a crack in the wall. He vanishes into the woods, then waits for the hostile characters to leave. His watch post contains nothing of value. Joining the Emerald Enclave
If the party helps Reidoth by chasing off Venomfang, the druid privately approaches certain members of the group and urges them to join the Emerald Enclave. He speaks with those who exemplify the ideal of protecting the natural order. If a character agrees, Reidoth gives the individual the title of Springwarden.