This story is a sequel to A Changeling Builds a House in the Everfree Forest
The venerable lords of cinders return once more to Ponyville to attend a 'welcome-to-Ponyville' party. Zarathon hopes to announce his vassalization of Ponyville during these favorable circumstances. Mute is there to support his fellow Lord in this quest. However, Ponyville might not be as receptive as Zarathon thought to the idea of having a pebble liege-lord, and neither Mute nor Zarathon can feel the encroaching darkness from the Everfree forest.
(The death tag was added due to the brief mention of death in the story. The sex tag was added due to the mention of lust and suitors. I think at least that is how these tags are meant to be applied due to the content of the story. There is no explicit scene of death or sex in this story.)