The next morning, Garfield, Twilight and the others got the answer from Princess Celestia.

"Sunset Shimmer. A former student of mine. She began her studies with me not long before Twilight.", Celestia answers. Normal was about to explain how long the Garfield characters have been in Ponyville, but realizes at the time he was gonna say it. "But when she did not get what she wanted as quickly as she liked, she turned cruel and dishonest."

"There's a little pee coming out of me right now.", commented Garfield, afraid of Sunset's backstory.

"I tried to help her, but she eventually decided to abandon her studies and pursue her own path. One that has sadly led her to stealing your crown.", Celestia told to Twilight.

"Woof. (Harsh.)", Odie comments.

"She replaced Twilight's with this one.", Spike explains, pulling out the fake crown.

"I think the jewel is like candy.", suggested Garfield, who took a bite of the jewel of the fake crown, but spits it out due to the bitter taste. "Plastic. Needs sugar."

"I suppose Sunset Shimmer thought you wouldn't notice right away that this is not yours. And by the time you did, it would be too late to go after your crown and the Elements of Harmony.", corrected Celestia.

"How come? It's never too late to save the day. Unless for a few, but still it doesn't count!", Nermal solved.

"But I don't understand. Where did she go? Why did she take the crown?", asked Twilight.

"Let me guess. Celestia, we saw Sunset go through the mirror last night, but I think she needs the crown to take over the world and stuff, but only again where was she going?", Jon demanded nicely.

"You guys will soon know more about this place than even I do.", Celestia settled as they followed Odie, with his sense of smell to the room they were in last night.

Odie then leads them in front of the mirror, where the other princess, Princess Luna, explains about the mirror the crown and Sunset entered through.

"This is no ordinary mirror. It's a gateway to another world. A gateway that opens once every 30 moons.", examined Princess Luna, telling everyone about the mirror.

"As in 30 days or two and a half years?", asked Arlene.

"The second one."

"WHAT?! That's the worst one!"

"Sparkly!", Pinkie Pie cheered, touching her hoof on the mirror. Luna's magic pulls it away from the mirror.

"It has always been kept in the throne room of Canterlot Castle. But when Princess Cadence took over the Crystal Empire, we sent it here for her to watch over.", continued Princess Luna.

"Your blessing, your majesty.", Nermal thanked Cadence, holding her hoof with both arms. When he was about to kiss the hoof like a charming man, Arlene knocks Nermal on the head, making him remember what he suppose to do - listen. Arlene and Cadence smile at each other after the former does this.

"I had always hoped that Sunset Shimmer would someday use it to return, to come back to Equestria seeking my guidance. Obviously, that is not what has happened.", Princess Celestia joined.

"Because of jealousy, she stole the crown?", Garfield guessed. It was correct.

"Twilight, Garfield, Odie, Jon, Liz, Arlene and Nermal...you guys must use the mirror to go into this other world and retrieve Twilight's crown. Without it, the Elements of Harmony will have no power and Equestria is left without one of it's most important means of defense.", Cadence generalized the seven to go.

"Don't worry, we won't let Equestria down.", ensured Garfield, who then salutes to her, the princesses and all the good in Equestria. The seven then stand in front of the mirror.

"Your crown does not belong to the place Sunset Shimmer now calls home. And in your possession, your Element of Harmony will no doubt be used to bring harm to the inhabitants of this other realm. They will not have the power to defend themselves.", Luna tells Twilight, who is given saddlebags from Luna.

"Princess Luna, one question...What will happen if Sunset dons the Element...?", Jon awkwardly requested.

"...We have no idea."

"But something particularly horrible?"

"Most likely."

Jon faints due to the idea of a super-terrible consequence of what happens if Sunset dons the crown, which a moment later, stood back up.

"You understand the importance of your task?", Celestia readies the seven, which the six Garfield characters salute to the princess, again.

"Of course.", Twilight answered, with the seven saying the same thing with "your majesty".

"Good. Then you must go at once."

Garfield, with custom war music by Jerry Goldsmith on, puts on a war helmet and we see a close up on Garfield's eyes, who peel to be ready for the adventure of a lifetime. Twilight also takes a deep breath, before she and the Garfield characters walk towards the mirror.

Rainbow Dash lands in front of them, scaring them the third time.

"Whoa, whoa, whoa! They're going, we're going with them! Right, girls?", Rainbow Dash suggests.

"Ooh! I'm so nervouscited!", excites Pinkie Pie.

"You do realize that's not a word, right?", asked Applejack to the party pony.

Twilight and Garfield smiles at the five ponies.

"I'm afraid I can let you go.", Celestia declined.

"What?! Why not?!", angrily shouted Rainbow.

"Sending all of you could upset the balance of this alternative world, creating havoc that would make it impossible for Twilight to get the crown back from Sunset Shimmer. This is something Princess Twilight, and the Garfield characters must do...together.", explained Celestia once again.

"I guess it's for heroic measures.", lamented Garfield, with Odie agreeing with him, lamenting too.

"Time is of the essence. On the third day, when the moon reaches it's peak in the night sky...the gateway will close.", Luna warns Twilight and Garfield, showing a image of the moon covering one of the three stars, brightening the moon and then back again. "And once it does, it will be another thirty moons before you will be able to use it to return."

"You're right. We want to return to Equestria to avoid staying there two and a half years.", Garfield added. "We'll make sure it's three days time."

Garfield, taking off his war helmet, and he, Twilight and the rest of the cat's friends prepare to go through the portal. Taking a last look from Celestia, the latter firmly nods that they're ready.

"One small step for cat...One giant leap for animalkind!", meowed Garfield, with Odie howling as the two, Twilight and the others go through the portal. However, Spike, feeling afraid that it will be hard for them, runs to the mirror to catch up with them.

"Spike, NOOOO!", the Mane 6 yells at Spike before he goes through the portal.

In the portal, Twilight and Spike were swirling like in a hypnotic circle, while Garfield and the others, ahead of the two MLP characters were felt like falling from outer space, but in a horizontal gravitational pull. Garfield and Odie, feeling the intensity of the portal, howls loudly before the trip ended.

Then everything turns black.