A place of magic and mystery filled with rangers and druids, it is where the Old Gods still have great meaning to the people. Citizen of the empire feel a little out of place when visiting the grove. But make no mistake, the grove is loyal to the empire and the Thane is extremely loyal and will levy troops, fighting against all enemies in support of the Empire if Praetor Glaber should put out the call.
There are rumors that the Thane of Grellan's Grove commands the power to walk between the worlds, but most take this to means she is comfortable in Kashal or the forests surrounding the Grove. It's only the conspiracy theorists like Dr Dee who think it means more than that. Maybe they are talking about the Feywilds, because there are an inordinate number of gnomes, elves and half-elves residing in the Grove.