[@LadyRunic] I was thinking, perhaps there is some magic in Stone Henge that prevents any other magic from being used within the standing stones as it absorbs the energy or something. That would make it the perfect meeting place for the fae rulers as it would limit the harm they could do one another to simple physical violence which is not most fae's style and prevent assassination attempts. Also would prevent one ruler from using magic to change the minds of the others, for instance Ceridwen's siren speak wouldn't work within the standing stones. Just a thought.