Seeing that the crystal heart is broken. The group can see they have a terrible situation. Without the heart and it's magic, the empire along with everypony who lives here will be covered in ice and snow of the frozen north. They need to figure out how to fix the heart and fast.
"So... not only can we not take part in a fabulous ancient ceremony, but we're also about to be frozen solid!" Rarity scaredly says.
Then Twilight worriedly says, "Without the Crystal Heart's magical protection, the entire city's about to become a winter wasteland!"
But Applejack says looking confused and concern, "But what about when King Sombra ruled the Crystal Empire and the Crystal Heart was missin'? The city wasn't covered in snow then!"
"The Heart wasn't missing, it was still in the castle. King Sombra had just hidden it," Twilight clarifies.
"I'm afraid Twilight is correct, and the storm clouds are already forming," Princess Celestia agrees and seeing the dark clouds forming in the sky.
"And it's about to get worse," Princess Cadence adds.
Rainbow Dash looks at the clouds with a confident looks and says, "I can totally fly up there and bust those puppies! No problem!"
However, Princess Celestia uses her magic to close the curtains to prevent Rainbow Dash from going outside in the cold.
"I wouldn't advise it, Rainbow Dash. Those storm clouds are not like the ones you know," Princess Celestia advise.
"I'm afraid she's right," Tiger Lily sadly adds.
The others look at Tiger Lily with a confused look.
Then Pinkie asks, "What do you mean?"
"After years of understanding weather, and what goes on in nature, I'm afraid these storms have a mind of their own, and they're much harsher than any snow storm I've ever encounter," Tiger Lily explains.
"I'm afraid Tiger Lily is right, this far north, the weather has a will of its own, and now it will only grow stronger, enveloping everything in its path," Princess Luna agrees.
"Including the Crystal Empire!" Princess Cadence scaredly replies.
"And us along with it!" Twilight worriedly adds.
Just then, everypony start to feel a harsh wind. They can tell that the far north's weather is only getting stronger, and soon it will cover the empire in its weather.
Then Tiger Lily scaredly asks, "What are we going to do?!"
Meanwhile back at Sunburst's house, Spike is trying to figure out a way to help Starlight rekindle her friendship, but using the list is not going so well.
"There's gotta be somethin'..." Spike quickly replies, looking at the list.
As he do that, Starlight and Sunburst are still having tea, but their conversation is not doing so well.
Sunburst says, "I know Princess Twilight is keen on the two of us rekindling our friendship, but... it's been so long. I don't see how anything on that list is going to help."
"I know, right? It's not like there's some spell that would magically compel us to pick up where we left off," Starlight replies.
Then Sunburst says, "Well, actually, there's several. Mistmane's Material Amity, Rockhoof's Rapport, Flash Prance's Fellow... ship... But I… I get the feeling the princess isn't looking for a spell."
"Definitely not," Starlight answers.
Spike looks at the list, and try to see what the list wants them to do next.
Spike find it, and exclaims, "Got it!"
He then turns to the two ponies and says, "And if all else fails, ask them to share an embarrassing moment from their past, maybe even something they regret!"
Starlight and Sunburst looks a bit confused, and some what a bit unsure about sharing some of their embarrassing moments in their past.
"Uh, I don't see how that would help," Sunburst says, looking unsure.
"Uh, yeah! We should just get out of your mane. It's pretty obvious this isn't going how Twilight hoped, and I'm sure you have plenty of important work to do…" Starlight says, as she is getting ready to leave.
"What? Oh! Right, yes, heh-heh! Uh, no rest for the wizardly," Sunburst replies, acting a bit nervous.
Starlight walks away as he passes Spike, and says, "Come on, Spike."
Spike groans with a bit annoyed, and a bit disappointed that the list is not going so well. He then walk with Starlight out of the door, and close it right behind them. Starlight knows that she and Sunburst might never be able to fix their friendship. Back at the base of the castle, where the Crystal Heart is shattered, The girls, princesses, and Shining Armor are trying to think of a way to fix the Crystal Heart and save the empire from being covered in snow and ice.
Twilight tries to think of an idea, as she says, "There must be a spell that can restore the Crystal Heart!"
"Perhaps," Princess Celestia replies.
"But it isn't something that either of us know," Princess Luna worriedly adds.
Princess Cadence comes over and says, "The library here at the castle is nearly as extensive as the one in Canterlot. There's a good chance we can find something there!"
The others can see that it's the only choice they have. However, they need to stop the storm long enough to find a spell or something to fix the heart.
Twilight turns to the two princess sisters, and asks, "Can you hold off the storm?"
"Yes, for a time, but even our magic will eventually succumb to the power of the Frozen North," Princess Luna answers.
Then Princess Celestia says, "We will do what we can, but you must hurry."
Tiger Lily comes up to the princesses and asks, "Should I go help too?"
"I'm afraid not, even though you are connected to nature including weather, I'm afraid your magic might not be strong enough to help us with the storm," Princess Celestia sadly answers.
Then Princess Luna says, "And Twilight and the others can use your help around the library."
"Okay," Tiger Lily replies.
With that, Princess Celestia and Princess Luna head to the center of the harsh weather and uses their magic to hold off the storm for as long as they can possibly can. While they're doing that, the others need find something to fix the heart and stop the frozen north weather.
Twilight turns to the others, and says, "I don't know how long it will take to find the right spell, but you should probably tell the crowd outside to get somewhere warm!"
"And try not to mention the Crystal Heart. We don't want to start a panic," Princess Cadence adds.
The girls agree to the idea. It's decided that Applejack, Rainbow Dash, and Fluttershy will be going to the crowd and try to get them somewhere safe and warm from the storm.
"Yes, ma'am. C'mon, girls!" Applejack says.
With that, Applejack, Rainbow Dash, and Fluttershy head over to the crowd of crystal ponies and try to get them to leave back to their houses.
Twilight comes over to the others and says, "I'm gonna need all of your help. The crystal library is enormous!"
"You can count on us, Twily!" Shining Armor says while holding the baby in his hooves.
The baby alicorn then starts to giggle as babies do. Just then, she teleports herself on to Pinkie's face, freaking her out. Pinkas pulls the baby off of her face, and the baby is about to hit the ground. Luckily Tiger Lily is able to catch her in time. However, the baby smiles seeing Tiger Lily and teleport herself and Tiger Lily away. The others become freaked out to see what the baby has done.
Shining Armor scaredly exclaims, "Where'd they go?!"
The group look around and can hear the baby giggling around the area.
Just then, they hear TigerLily calling out, "Help!"
Princess Cadence turn to hear the noise is coming from one of the doors in the palace,
"This way!" Princess Cadence instructs.
Knowing where the two have gone, Cadence leads the others into the castle so they can get the baby and Tiger Lily back from wherever they are. In the streets of the Crystal Empire, Starlight and Spike are heading back to the palace to see Twilight and the others, but not aware of the frozen air, snow falling, and everything is freezing around them. Starlight is distracted because her time with Sunburst has not been successful.
"Well, Spike, looks like my biggest fears came true. I wouldn't be surprised if Twilight decides to give up on me entirely," Starlight sadly replies, with a sigh.
"Aw, it's not your fault. I'm the one who said all we needed was this list," Spike replies.
"It's not the list, Spike, or you, or Twilight, I'm the one Sunburst doesn't want to be friends with," Starlight says feeling sad.
"I don't remember him saying he didn't want to be friends," Spike replies.
"He didn't have to say it," Starlight sadly replies.
"Well, Twilight obviously thinks you're worth being friends with, And I do too! Even Tiger Lily think so too, and she thinks of you more as a sister than a friend," Spike says, giving Starlight a hug.
Starlight smiles back and says, "Thanks, Spike. At least I have two friends and a cousin, even if one of them has dragon breath."
Spike looks a bit confused when Starlight is saying something about his breath. He takes a deep breath, and notice something wrong, and it's not his breath.
"Uh, that's not dragon breath, it's freezing!" Spike says feeling the harsh cold.
Just then, a strong cold wind blows right past them, and they can feel it. They look around to see the buildings are covered in ice and snow.
"Oh, you're right! But I thought the Crystal Heart was supposed to keep the cold weather out," Starlight says, looking confused and worried to see the empire is not looking right.
"It is…" Spike agrees.
He then realizes something and exclaims, "Unless something's happened! Come on!"
Know disasters on the foot, Starlight, and Spike hurry back to the palace to see what's going on. Of course, things around here are already getting harry as it it. Back at the palace, the baby is flying around the palace with Tiger Lily being hold with her mgica. Tiger Lily tries her best to get the baby to let go of her, fly, or do what it takes to calm the baby down, but nothing seems to work. Luckily Twilight and the others are able to grab Tiger Lily, but not the baby. However Cadence is able to grab hold of the baby. After getting them both back, everypony rush to the library so they can find a book that will contain a spell so they can fix the Crystal Heart, before the entire empire is covered in snow.