A Ponyville Hearth's Warming

Luckily, Rarity was much easier to find than Twilight. Taking full advantage of her pegasus wings, Fluttershy flew over the bustling crowds in the castle, making ready for the grand celebration. Where there were the most decorations, there would be Rarity. Sure enough Fluttershy found her friend in the grand ballroom, fretting over an enormous Hearth's Warming tree.

Rarity was frantically directing a team of four pegasi flying around the gigantic tree, putting up hundreds of ornaments. "No no that one goes to the left! We have to do this perfectly, Princess Celestia herself is going to come see this tree! Oh come on Derpy that's the fourth ornament you've dropped!" Derpy shrugged sheepishly and grabbed a new ornament from the box she was carrying.

Beside Rarity were several boxes of fabric and stitching tools, levitated with finesse by the dressmaker. She knitted several red sweaters and hats with her magic at the same time, piling them up in wooden crates after each batch was done.

"Um hi Rarity."

Rarity gave a slight nod of acknowledgement her way and continued what she was doing.

"So there's something really important I have to-"

Realization seemed to dawn on Rarity's eyes. Her needles immediately stopped stitching and she turned toward Fluttershy. "Oh Fluttershy goodness me I was so wrapped up in this knitting. A spell like this takes alot of concentration to pull off. How has your Hearth's Warming been darling?"

"Oh um actually not so good, see there's a spirit-"

"No Snow Flurry the gold and yellow ornaments have to stand out! She's the princess of the sun after all!" Rarity called out toward a dark blue pegasus with shovel cutie mark. He nodded and continued decorating. Rarity turned back to Fluttershy. "Ugh it's been a nightmare all day darling, so much to do. Twilight has put me in charge of decorations and sweaters! Normally I like to knit everyone a special personalized sweater, but with all the work I simply don't have the time. This red looks rather nice don't you think?" She levitated up one of the finished sweaters. The red was indeed festive, but the sweater looked rather plain and rushed to Fluttershy's eyes.

"Oh yes it looks good Rarity." Fluttershy stammered. "But there's actually something-"

Rarity's attention was already turned back to the tree, and she was yelling more instructions to the pegasi, urging them to move faster. Fluttershy waved her hoof to get Rarity's attention and the fashionista turned back to her. "What was that darling you were saying something?"

"I-" Fluttershy began. Suddenly she felt another cold wind ominously blow through the room. Jack Frost materialized in the air just above Rarity, chuckling mischievously. Fluttershy gasped. "Oh no." He pointed his hoof at the tree and a bolt of magic flew at it. There was a moment of dead silence until... CRACK! Every single ornament on the tree shattered at the same time throwing shards across the room. The pegasi flew out of the way and Rarity instinctively put up a blue shield over herself and Fluttershy. When the shards stopped raining down, there was a loud groan and the tree collapsed with a giant thud.

Fluttershy and Rarity were breathing heavily, utterly shocked by what just happened. "Is everypony okay?" Snow Flurry asked. There were four yeses from Fluttershy and the other pegasi.

Rarity simply stared at the tree, her mouth agape. The shield fizzled away, and she began to tear up. "My tree.... my beautiful tree... RUINED!" she began wailing and galloped out of the room. Fluttershy reached a hoof out after her friend but Rarity had already galloped down the hall and out of sight. This spirit wasn't just a prankster like Discord... he was downright evil!

Fluttershy wanted to go and comfort Rarity, but knew there was no time. She had to find somepony to help her catch Jack Frost before he caused anymore damage.

"Who's good at catching things..." Fluttershy wondered aloud. A memory sprang to mind of Applejack lassoing a runaway pig back at Sweet Apple Acres, after Apple Bloom had accidentally left the pen open. "Maybe Applejack can help me sort this out. Oh but she's all the way at Sweet Apple Acres! I'll never get there in time!"

"Actually Applejack is just downstairs in the kitchen. I think Twilight put her in charge of baking." Snow Flurry said as he and the other pegasi hoisted up the tree.

"Oh thank you!" Fluttershy said gratefully as she galloped out of the room to go find her farmer friend.