''Yes, a princess.'' Tails said while facepalming.

''Tails, the last time I encountered a princess, I was blasted through the heart!'' Sonic said while flailing his arms up and down in a cartoonish manner.

''But this gives you a chance to verify that you mean no harm to this world, Sonic.'' Tails said, ''You don't exactly have EVERYONE's trust so far, now do you?''

Sonic rubbed his chin before shrugging.

''There have been townsfolk suspicious in our agenda , believing it to be for our own gain rather than selfless behavior, so I guess this can clear all of that up.'' Sonic agreed.

Little did they know, Twilight Sparkle was watching them leave from her room before teleporting away.

Meanwhile, outside of Canterlot

A black, damaged alicorn looked upon canterlot, followed by a bunch of other black ponies.

''Canterlot...haven't been here since that pitiful wedding!'' The alicorn spat before turning to the ponies, ''Here, my children, we will not fail.''

The ponies raised their left hoof up as the alicorn laughed.

Canterlot

Sonic and Tails sped to the front gate of canterlot, only to be halted when a group of guards guards pointed spears at them.

''GEEZ!'' Sonic said, poking one of the spears, ''We're not here to do any harm. Princess Celestia wanted us to come.''

''Indeed she did...so you are Sonic The Hedgehog?'' the leader asked and Sonic nodded, ''Shining Armor, leader of the guard and prince of the crystal empire. I believe you know my sister.''

''Sister?'' Sonic wondered, raising an eyebrow.

''Twilight, of course.'' Shining Armor answered, causing Sonic to blink, ''I heard you and Twilight took down a threat to ponyville yesterday.''

''Heh..yeah.'' Sonic said while running his finger under his nose, '' It was no problem, I deal with egghead every day of the week.''

''So it seems.'' Shining Armor agreed before turning to his guards, ''Alright, let them in.''

When Sonic was about to walk in, his hand was grabbed by a gamboge-colored pegasus in gold armor with a blue mane.

''What a mi-'' Sonic started, but the pegasus shook his hand violently, ''What are you doing?''

''I am Flash Sentry and i've heard a lot of things about you from ponyville visitors!'' The pegasus, named Flash Sentry, squealed.

''Please don't bloat Sonic's ego more than it already is.'' Tails said while sighing before Sonic sped off, 'SONIC, WAIT!''

As they were speeding towards the castle of two sisters, they found a carriage with a large blanket over it.

Sonic walked over to it and knocked on it's door, causing the door to open on him, giving Sonic no time to react as he was hit in the face by it, causing him to fall down the stairs and land in Tails' arms.

''My hero!'' Sonic said before hopping off as a blue unicorn with white hair and a magician's hat and cape.

''Who would want to interrupt the nap of the great and powerful Tri-'' The unicorn said before seeing the pair, ''Are you the pair of aliens Trixie was hearing about while she was exploring ponyville?''

''Who's Trixie?'' Sonic asked, but Tails poked his shoulder, ''Huh?''

''I think she is...I think she talks in the third person, Sonic.'' Tails said.

''CORRECT!'' Trixie said, ''Trixie was coming to ponyville to check up on Starlight before she saw explosions, causing her to come back to canterlot.''

''Right...well, we'll be off to the castle now,so-'' Sonic started, but was grabbed by Trixie.

''The castle of princesses Celestia and Luna?'' Trixie asked and Sonic nodded, ''Can Trixie come?''

''...I guess.'' Sonic said while shrugging and Trixie squealed.

Later, at the castle

Sonic, Tails and Trixie walked in and saw nobody was there before more guards popped up and shot lasers at them, but Tails managed to use his technology to raise a shield to protect them.

''What are you guys doing!?'' Sonic asked and a dark blue alicorn teleported in front of the guards.

''HALT YOUR ACTIONS!'' The alicorn yelled, ''thou will not fire at guests our sister suggested!''

''The kind of voice this alicorn is speaking is a royal equestrian voice, according to what Twilight has told me.'' Tails said as the alicorn continued to speak.

''We understand the situation is critical, but thy sister will not approve of this! Go back to your posts!'' The Alicorn said and the guards nodded before retreating to their posts. The Alicorn turned to Sonic, Tails and Trixie before smiling, ''I am sorry for that display.''

''No biggie.'' Sonic sand and The Alicorn looked at Sonic.

''I am Princess Luna, sister of Celestia and princess of the moon.'' Luna said, ''My job is to raise and lower the moon.''

''Ah, so the raising of the sun and moon are different on this world.'' Tails said, rubbing his chin as Luna looked at him.

''What do you mean?'' Luna asked the young fox, who shrugged.

''Back at mobius, the sun and moon raise naturally rather than by one person.'' Tails explained, 'But that's something i'll look into later.''

''So you shall..'' Luna said while nodding, but then frowned, ''There is trouble in Canterlot, though.''

''What kind of trouble?'' Sonic asked and Luna sighed.

''The changelings.'' Luna revealed and Sonic raised an eyebrow.

''What are changelings?'' Sonic asked and Luna sighed.

''They are evil creatures who feed off of the love of the citizens of equestria. They can shapeshift into anypony they want.''Luna explained, '' Twilight Sparkle and her friends managed to fend off an invasion of canterlot a few months back, but it seems they are targeting our fair city again.''

''Trixie has helped prevent another full scale invasion before with her best friend, Starlight Glimmer and 2 others.'' Trixie said, raising a hoof.

''Correct, but this time it's different...my sister has been...out of character, per say.'' Luna said while sighing again, '' She thinks it's just stress, but I think it's far more.''

''Wait, wait, hold the phone.'' Sonic said, raising a finger, ''You said that changelings can shapeshift into any pony they desired, right?''

''Indee-'' Luna started, but realized where Sonic was going, '' Do you believe that my sister has been replaced by a changeling?''

''It's a sure possibility.'' Tails added, ''I heard from a conversation I was listening into while eating lunch that changelings can alter the personalities of their assumed forms, making them appear worse than they actually are.''

Meanwhile, at Celestia's throne room

''Princess Celestia!'' Shining Armor said, bowing to her, ''There is…a problem.''

''What problem do you speak of?'' Celestia asked him.

''Changelings have been spotted by our patrols outside of canterlot, should we go and stop them?'' Shining Armor asked and Celestia nodded.

''Go find the changelings and bring them for interrogation.'' Celestia told him and Shining nodded before leaving with the guards in the throne room.

When Celestia used her magic to slam the door shut, she chuckled.

''Those fools don't even suspect a thing.'' Celestia said before her eyes glowed green with a smirk, ''Nothing at all…''

FIRST PART OF CRISIS IN CANTERLOT! THIS WILL BE A 2 OR 3 PARTER, SO STAY TUNED!

The Death of Carrie Fisher threw the chapter off by a day, but the support of my friends managed to make me press on and complete it.

And so, I dedicate this chapter to the late, great, Carrie Fisher

1956 - 2016

NEXT: The Changeling Invasion fully starts! With changelings outside of Canterlot, forcing The canterlot guard to mobilize and fight, Chrysalis has the rest of her changeling army sneak into canterlot, leaving it up to Sonic, Tails, Luna, Trixie and Twilight to defend Canterlot.

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