Home for rodents that have dug through the earth.
You are able to speak to animals and plants.
Whereas druids learn the mysteries of nature, greenwardens are devoted to its protection. They walk in two worlds, tending to the needs of the wild while maintaining peace with the lands of men. Their careful ministration of natural concerns makes them welcome in most communities, just as their kinship with nature allows them to walk the wilderness without fear.
A goblin has been collecting opossums for some reason, it seems they have escaped and are running wild.
All manner of twisted creatures have sprouted from this tree. Some evil has corrupted one of the oldest trees of the forest sending it in to a writhing state.
Something big must have died here to create such an out-of-control infestation of vermin. Someone who can talk to them may be able to convince them to leave. The only other solutions are fire or fumigation. Either way, disturbing the nest may be perilous.