NOTE this is immediately after John accidently let off the magical spell and this is in the POV of Celestia.
"SISTER, SISTER!" Luna was saying screaming as she ran into my room.
"Yes? What is it Luna?" I said yawning
"Did you feel that magic shockwave? It was the most powerful thing I have ever felt. Even stronger than the Elements of Harmony I believe." She said in a worried voice.
"Yes Luna I did feel the shock wave. And I already determined were it came from." I said
"Well were did it come from and what pony or creature could have released a spell that strong?" Luan asked
"Well I have determined that it came from John and I used my powers to find out what caused it, and I found out that John accidently caused that shockwave while still sleeping." I told my little sister.
"What could have he been dreaming to cause such a powerful spell to be cast?" Luna said
"He had a nightmare, and I was able to see that he was dreaming and let me tell you this it was the most horrifying thing I have ever seen, even if it was only a nightmare." I said shivering
"Really, was it that bad? Since even I have never known you to be so afraid, even if it was a nightmare." Luna said in a worried voice.
"Look I don't want to talk about it so can you please go back to bed? Please I really don't want to talk about it anymore." I said
"Ok, I'll go back to bed. Goodnight sis." Said Luna
As Luna left the room I crawled back into bed and tried to go back to sleep. But the sheer power of that magical shockwave I haven't felt since before Discord came into this world. I'm truly afraid of what might come from this shockwave this time. But what frightens me even more is the fact that I noticed that the shockwave had quite a few after shock waves, and because of this I fear that there will be more than one incident of were something that is not of this world to come here.
*Sigh* "Well now is not the time to be worrying about this. I should wait till tomorrow or until something actually happens since I could be just over reacting."
Hope you liked this small chapter on Celestia's thoughts on what John accidently did. But I still need people to decide on what crossover I should do first.