A Forum For Change

Celestia opens her mouth to ask several more questions but stops when the Invader passes out, flopping to the floor quite limply but still breathing.

In the authors note I said something about smog, I joked a bit, sorry.

She picks Zagoroth up and carries him out of the throne room to Luna's bedroom, when arriving there knocks on the door twice as she opens it "Sister, the lost one has fallen unconscious while we were talking. I think he spoke a little too much at once." She floats the dark grey Invader down onto Luna's bed, upon which said alicorn is sitting.

Luna looks down at the invader as her horn begins to glow, the blue magic field covering the pony's lungs. In them were some adaptations that made it not unhealthy to breathe in polluted or smoggy air but it didn't do as well while filtering the fresh, heavy air of the Equestrian landscape or absorbing the necessary air chemicals to expend them in long bursts while on the planet. It takes the sisters, Celestia joined Luna's effort in moments to determine what was wrong, several minutes to note all this and finish checking thoroughly for anything they may have missed.

Once finished with this, the younger one asks "Do we change him..?"

Celestia doesn't answer for short time, instead pacing inside the bed-chamber to think on it.

"I don't think he will, and we can always change it back before he leaves."

The older sister stops, then nods "Yes, that sounds.. well enough. I shall leave you to that, I believe I had a meeting scheduled today.." With that, Celestia walks out of the room.

Luna sighs softly after the door shuts, her sister is always busy and the trips and meetings were almost always the most boring things a pony could do. Briefly wishing for more time with Tia, the moon princess set about healing the invader's lungs, in accordance with equestria's standards.

Celestia, for her part, did copy down what the lungs were like before the transformation for what that is worth before she went to the meeting.

Half an hour passes, just that long, before the invader opens his eyes, now breathing deeply and well. He smiles happily up at Luna, his face lighting up with newfound life in it and a strange glint in his right eye. As Luna was about to say hello he lunges forward and stabs his horn right through her throat, quickly tearing it to the right as the night time princess bled heavily from even the initial wound which only grew larger. Zagoroth stood up as Luna bleeds and begins to dismember her legs, tail, mane, ears, and at the end even destroys her eyes and squashes her muzzle in flat. All the while muttering something about bad differences and how there aren't any reporting stations.

None of the ponies heard him murder Luna and he washed off in the princess's personal bathroom, as well as washing the bed and floor. He also hid Luna's corpse in all it's parts in the bathroom there. When he stepped out of the room, smiling brightly, he was dry and smelling strongly of roses so the guards didn't pay him much attention. Especially after he told them the princess needed to sleep.

Celestia was still gone in the meeting so he wandered around the castle until he found the exit, and he left. He left the castle, left Canterlot. His business was done.