Prologue:

Over two years had passed since Po, the Furious Five, and other Kung-Fu masters defeated the evilness of Lord Shen and his army. Since then, China lived under continuous peace and prosperity...or so it seemed. Until one day, when a goose came crashing into the Training Hall courtyard.

"Wow, good thing we haven't started training yet." The Dragon Warrior remarked, as he and the others rushed towards the fallen waterfowl.

"Quick, Mantis, go fetch Zeng!" Grandmaster Shifu told the praying mantis. "She seems to have been through a long rough flight."

When they got closer, they could see how right Shifu was. There were holes in her yellow garment, missing grey feathers plucked from her body, and signs of bruises and scratches along the exposed areas. Tigress' eyes seemed to harden more than usual, as she examined this. "Looks like the work of Crow bandits." She growled.

"Are you alright?" Viper asked the goose, who was trying to get up while panting heavily.

"I'm..." the goose tried to reply between breaths. "I'm..I'm alright." She opened her eyes finally, revealing them to be pointing in different directions.

"You don't exactly look alright." Crane pointed out.

"Is...Is this...the...Jade...Palace?" the goose asked.

"Yes it is." Shifu answered as he approached her. "And I am Master Shifu. Who might you be?"

"Dezhi." the goose replied and handed Shifu a scroll that she was still clinging on tightly to her webbed feet. "From...Ma-...Mast...Master Lian."

"Master Lian!" Shifu gasped as he opened the scroll up.

"Master Lian?!" Po said enthusiastically. "The Master Lian?!"

"Who is Master Lian?" Monkey asked in confusion. The others seemed to be just as confused as he was.

"You guys don't know who Master Lian is?" Po asked in surprise. "Eldest of the two legendary Celestial Sisters?"
Four shaking heads answered him. Before Po could tell them; Mantis, Zeng, and two other servant geese, carrying a stretcher-bearer, had just rushed into the courtyard. As they approached Dezhi to put her on the stretcher-bearer, Shifu turned his attention away from the scroll and towards Zeng.

"Put her someplace cool and comfortable." he instructed the goose. "Give her plenty of water to drink, and have her injuries attended to."

"Right away Master Shifu." Zeng replied and bowed. As the four geese departed from the Training Hall courtyard, Shifu returned to reading the scroll. Meanwhile, Po started explaining to the Five about who the Celestial Sisters were. Po, being the ultimate fan-boy of Kung Fu, seemed to know almost everything and everyone that was involved with it. At times, this even amazed the other masters, who had been doing Kung Fu longer than him.

"The Celestial Sisters are the two co-ruling Kung Fu master siblings, of the legendary Land of Harmony. Different from each other as day and night, yet equal in their martial prowess, like two powerful peas in a pod of Awesomeness! Said to have been rescued when they were young, from the evil bondage of cruel kidnappers, by Master Oog-way himself. From that moment on, they trained together, under Ooog-way's teachings, and became a deadly dynamic duo of dread to all doers of no-good. They defeated the Demon of Mount Lung-Ma, subdued the Sapphire King of Suxi, and totally KO-ed the Queen of the Golden Jackal Clan. With the Celestial Sisters watching over them, from the Palace of Blooming Lotus, the people of the Land of Harmony have lived happily there-"

"Until now." Shifu interrupted gravely, as he stopped reading the scroll and faced his students.

"Until Now!" Po repeated Shifu's words dramatically. Suddenly realizing what he had said, he turned to Shifu in confusion. "Wait, what?"

"There is a new threat to the Land of Harmony, one that the Celestial Sisters have been unable to remove. A young warlord and her bandit army have been using the surrounding forest mountains to cut it off from the rest of China."

"Woah, that's gotta be one big army then." Po muttered.

"That would strongly suggest how and why Dezhi got attacked by crow bandits." Tigress remarked. "They probably don't want any outside help being sent to stop them."

"Which is exactly why Master Lian has asked us to come help stop this warlord." Shifu said.

"Really?" Po asked excitedly. "Awesome! We are going right?"

"Of course we are. I knew Master Lian from a long while back." Shifu replied as he rolled the scroll up. "We must gather what we need for three days travel."

"Alright, Yeah! Let's go get...ummm...Who is it we're going to stop anyways?"

"I'm not really sure Po." Shifu glanced at the Dragon Warrior. "The warlord's name is not Chinese in origin. All that Master Lian wrote were five characters: Sun-Shan Shi-Ma-Er."

Twilight Sparkle slowly opened her eyes, while trying to recall what had happened after she entered the mirror, when she suddenly heard a familiar voice call out to her.

"Umm..Twilight?" said the voice of Spike, the baby dragon.

"Spike?!" She replied to her long time friend, companion, assistant and adopted little brother. Twilight figured he must have followed after her, even though Princess Celestia had specifically said she was to do this mission alone.
"You're not suppose to be-" But before she could finish, her eyes had finally opened wide and in focus, revealing a round furry black and white face looking at her.
"Spike? Are you a...panda?!"

The face backed up to show a giant panda cub. It wore a strange little emerald green hat, a light green and purple vest, and purple shorts. The panda looked at its fur and clothes for a brief moment, before returning to Twilight.

"I think so." it answered in Spike's voice.

"You sure have grown...bigger." Twilight noted.

"Actually," panda Spike said hesitantly. "I think you've gotten smaller."

"What are you talking about?" Twilight asked as she looked down at where her front hooves would usually be.
Instead of hooves, there were two long lavender sleeves, with pink and purple stripe designs on the cuffs. At the end of the sleeves were two dark brown oval-shaped paws. Twilight gasped and then started to scream, which soon turned into a slightly high pitch 'meow'. Shocked and embarrassed, she covered her mouth with her 'paws'. She slowly lifted them up at eye level, so she could have a closer look. They resembled cat paws, except the digits seemed a bit longer. She started flexing and wiggling them, but then several claws came out. Even though she somehow managed to sheathe them back in, her mind was now in a growing state of panic, as she began feeling and observing the rest of her body.
Her head was round, with triangular ears, and no mane or horn! Her muzzle had shortened into a modified wedge shape, with several whiskers along the sides of her mouth. Her teeth were long and pointy, and her tongue was rough on the surface. She wore a lavender robe with indigo trimming, a design like her cutie mark, and an indigo sash wrapped around her waist. Lifting one of her hind legs up, she could see her ankle was wrapped in a pink and purple cloth, and what appeared to be a topless shoe on her dark brown paw. Her tail was long, slender, wispy and dark brown.
"I'm...I'm a Cat!" Twilight spoke finally.

"Took long enough?" Spike remarked as he was scratching himself from behind.

"Oh no! This is not goo at all." Twilight said to herself out-loud. "If I'm cat, and I don't have my horn anymore. That means I can't do any magic, and if I can't do any magic..."
Twilight's heart beat was racing fast, her breathing short, her eyes widened, and her mouth hung opened as it was just about to make a sound. Suddenly a black paw covered her entire face.

"Are you going to scream again?" Spike asked.
Twilight shook her head, and the paw was removed, allowing her to breathe again.
"Come on Twilight, you've got to pull it together now."

Hearing Spike say that, Twilight started to calm herself down by taking a couple of long deep breaths.
"Okay."

Spike started looking around and asked, "So...where exactly are we?"

Twilight realized she did not know where they were. She had been too busy getting over the shock of her new body, and to a lesser extent Spike's, to pay any attention. She noticed that they were in what appeared to be some kind of park or garden. It wasn't like anything she had seen before.
"I'm not sure," she finally answered. Turning around she saw behind her a large rock, that seemed to resemble a turtle. "But I think this must be the portal back to Equestria."
She went over and touched the rock, and it started to shine as her entire arm went right through it. Pulling it back, she looked to see if anything had changed to it, but to her disappointment nothing. Focusing her mind back to the present situation, she said with determination; "We need to find my crown and get back there as soon as possible."
Glancing up, she saw what appeared to be a strange white castle-like structure off in the distance.
"I suggest we start searching for it in that castle first."

"Works for me." Spike said as he picked up a rucksack that was similar to Twilight's saddle-bag in colour and cutie mark design.

"Come on Spike, hop on!" Twilight said as she got on all fours. Just after the words left her mouth, she remembered she was not a pony. "Oh." She said sheepishly.

Spike starred blankly at her before walking towards a near by path. "Yeah, that's probably not a good idea."

They followed the path, but hadn't gone too far, when they heard the sounds of running from behind. Turning around, they were surprised to see two she-wolves rushing towards them. One had white fur, wore a blue and turquoise robe, and purple spectacles. The other had dark and light gray fur, wore a pink robe with white trimming, and was carrying a two-stringed instrument along with a bow. The two wolves were both twice the size of either Twilight or Spike. Twilight felt her back arch up and the fur along her body standing on end as they came closer.