Antarctica:
The Frost Twins flew to Antarctica at the bottom of the world where they wouldn't cause any trouble. They ran to the edge of an ice cliff to throw away their tooth boxes but they couldn't bring themselves to do it.
"I thought this might happen," Pitch's voice spoke from behind them sympathetically. "They never really believed in you two. I was just trying to show you guys that,"
Both the twins were boiling up with hatred.
"But I understand,"
Jack however reeled on Pitch, blasting him with ice. "You don't understand anything!" he shouted as he and Janet leaped over Pitch.
"You couldn't never see how we feel!" Janet added in with her venomous voice.
"No?!" Pitch retorted angrily blocking Jack's second attack. They all continued to fight with Pitch still shouting back. "I do know what it's like to be cast out!" he threw a nightmare sand blast at the twins but they rolled out of the way and leaped into the air screaming back. They both fired at Pitch but he blocked it.
Their clashing powers created a fog that Pitch disappeared into for a brief while.
"To not be believed in!" his voice spooked the atmosphere and Jack and Janet peered around for him. They spun round and saw him. They prepared to attack him with their sources of magic glowing. "To long for... a family,"
Jack lowered his staff and Janet lowered her hands making her snow medallion dim out its glow.
"All those years in the shadows, I thought, 'No one else knows what this feels like.'" Pitch lamented over the pain he had felt over some many centuries. "But now I see I was wrong. We don't have to be alone, Jack and Janet. I believe in you two - and I know children will too!"
"In us two?" Jack asked.
"Yes! Look at what the three of us can do!" he showed Jack and Janet the giant spiky creation of their ice and black sand that had been made during their clash. "What goes together better than cold and dark? We can make them believe! We'll give them a world where everything, everything is-"
"Pitch Black?" Janet interrupted.
"And Jack and Janet Frost too. They'll believe in the three of us," Pitch attempts to convince the Frost Twins to join him weren't enough.
"No, they'll fear the three of us. And that's not what my sister and I want," Jack turned round taking his sister's hand to lead her away.
"Now for the last time, leave us alone!" Janet ordered as they walked away. "If you ever show your face near us again, we'll kill you,"
Pitch was shocked by their refusal but just made his eyes frown and accepted it. "Very well. You two want to be left alone? Done! But first..."
Jack and Janet both turned round fearing of what he was about to do.
Pitch lifted up his right hand to show a captive Baby Tooth squeaking.
"Baby Tooth!" Janet shrieked in fear.
Both she and her brother prepared to attack Pitch.
"The staff and the medallion, Jack and Janet!" Pitch demanded. "You two have a bad habit of interfering. Now hand them over, and I'll let her go,"
Baby Tooth shacked her head pleading with Jack and Janet not give up the source of their powers but they couldn't just let Pitch kill her. Jack lowered his staff, spins it round, and hands it off to Pitch who took it with his left hand.
Janet took off her medallion and the moment she did, her snowflake wings turned into millions of snow sprinkles and fell onto the ground. She tossed it to Pitch who caught it with some room in his left hand.
"Alright - now let her go," Jack ordered.
"We did what you wanted," Janet stated holding her hand for Baby Tooth.
Pitch smirked and then frowned saying: "No,"
Jack and Janet were shocked, then furious.
"You guys said you wanted to be alone. So be alone all you two want!" Pitch shouted.
Baby Tooth glared at Pitch before stabs her beak into his hand.
Pitch screamed in pain but then growled at her and threw her over the Frost Twins heads into a nearby crack in the ice.
"No!" Janet gasped in horror for Baby Tooth. She and her twin turned round to see Pitch crush her medallion with his right hand. Janet screamed and groaned in visible pain.
"Janet!" Jack kneeled to help his sister fearing she was dying when she actually wasn't.
He was too concerned with checking on his weak sister that he didn't notice Pitch was about to fire a blast of black sand at him.
Janet noticed and pushed Jack out of the way; she took the hit and was slammed into the side of a giant ice chuck leaving her to falling into the crevice with Baby Tooth.
Jack gasped and then growled attempting to charge at Pitch but he grabbed him by his throat. He struggled to realize himself from the Nightmare King's grasp and was lifted up off his feet.
"You and your equally pathetic sister should have taken my offer - but you two are nothing," Pitch hissed cruelly in his face. He then threw Jack into the crevice. He landed with a thud on the ground with his sister.
Pitch laughed as he snapped Jack's staff into two pieces and threw them down the crevice's floor. He then kicked the pieces of Janet's medallion down as well and left.
A moment later, Janet stirred and woke up gritting her teeth in pain. Her eyes widened at seeing her brother.
"Jack!"
She scrambled weakly to him and gasped at her brother's state. The side of his head was bleeding. She pulled his head on her laps and use the end folds of her poncho to wipe his face. Tears fell down her eyes.
She then saw "Baby Tooth!" near her side. She reach her hands forward and picked her up to cradle her in her hands. "Are you okay?" She covered her with her palm but she twitters at her before sneezing. "I'm sorry, all I can do is keep you cold,"
Her brother's head started tossing and turning on her lap. "Janet?"
Jack's eyes weakly opened.
"It's okay, Jack," Janet's voice was snuffling a bit. "You're goanna be okay,"
"Pitch was right, Janet," Jack lamented as he still laid his head on her laps. "We make a mess of everything," Baby Tooth nestled inside Janet's poncho's hoodie.
Both the twins laid themselves against the side of the crevice's ice wall nestling close to each other to keep warm.
The same voice slowly woke them up.
"Jack? Janet?"
The voice woke the Frost Twins up and they both stumbled back in shock when they saw their hoodie and poncho glowing with a golden light. They pulled their tooth boxes out of their warm pockets looking at them.
"Jack! Janet!" the voice called out of the boxes again.
Both Jack and Janet looked at Baby Tooth now sitting on Janet's lap. She showed them what they had to do by placing a hand on Janet's box. She nodded at them telling them that by doing that they would unlock their memories.
"Are you ready for this, sis?" Jack asked.
"Not really," Janet admitted. "But I'll do it if you will,"
Jack nodded and they both placed their hands on their tooth boxes and memories began to fill their heads about their past.
Their memories showed a family that consisted of an adult woman, two twins: a boy and a girl and a smaller girl. They were walking into a woodland all happy with each other.
"Come on you two, you can't have fun all the time," the mother told the two twins.
But the girl twin replied, "Fun is the thing we live in,"
The boy twin added in "You should try it,"
The same twins were soon hanging upside down from a tree branch whilst some other kids were watching along with the same little girl.
"Jack, Janet, get down from there!" their little sister moaned.
"Come on, sis, you've gotta try it, you'll love it" the older one encouraged.
"It's fun," the brother encouraged.
Soon the three kids were leaving their small wooden house to go ice skating. They had ice skates ready and were wrapped warmly. The twin girl was wearing a snow necklace made out of twigs; it was something their dad had made for her when she was young before he died. He had given the twin boy the ice skates that he used when he was a kid.
"Be careful," the mother warned.
"When are we not careful?" Janet asked.
The mother just gave both her and Jack a pointed look.
Both Jack and Janet chuckled, "We will!" they both said.
A moment later, the three kids were ice-skating at the pond together however – the little girl in skates was on a cracking part of the ice and she was now afraid.
Both her older siblings noticed and took off their skates and placed it them on the iced-over lake.
"It's okay, it's okay! Don't look down, just look at me and Janet," Jack attempted to raise his younger sister's spirits.
"Look at us two. Both eyes on us two and you'll be fine," Janet attempted as well. "You just gotta be a bit brave,"
Their attempts to lift their younger sister's spirits didn't work "But I'm scared," she was getting more fearful by the minute because the ice was cracking underneath her feet.
"We- we know, we know, but you're gonna be alright - you're not gonna fall in," Janet tried to keep her calm. The last she ever wanted was her little sister to be scared. "It's going to be okay,"
"Janet's right. We're gonna have a little fun instead!" Jack answered trying to make the situation seem less dangerous.
But their little sister just called back, "No we're not!"
"Would we trick you?" Janet asked.
"Yes! You two always play tricks!"
"Well, alright, well not- not- not this time," Jack promised.
Janet spoke out, "We promise. We promise you're gonna be- you're gonna be fine. Ya haft to believe in us, okay?"
The young kid gulped and nodded.
"You wanna play a game?" Jack asked their younger sister hoping to brighten her up. "We're gonna play hopscotch! Like we play every day!"
"Let's add a bit of twirling like we usually do when dancing," Janet suggested. "To make it more fun,"
"Okay," their little sister were still scared.
"It's okay to be scared," Janet assured her younger sister. "Everyone gets scared. But you don't have to be because we're with you,"
"She's right," Jack added. "Now, let's try it. It's as easy as, uh, one – "the ice beneath their feet started cracking a little. "- woah!" Jack almost fell over, but Janet caught him and helped him. She chuckled a bit and their younger sister laughed a bit. "Two!" His sisters laughed again. "Three!" He lands on a section of the ice that wasn't thin. "Alright," Jack reached for a stick on the ice. "Now it's your turn and after you grab it and slide away, Janet will give you a little twirl, okay?"
"Okay,"
Janet prepared herself to catch her younger sister's arms but had decided to take off her snow twig medallion and place it on the ice just for a sec.
"One-" Jack began but their younger sister gasped because the ice was cracking beneath her feet like very fragile glass being pushed against. "That's it, that's it" He held out the stick near her as she gasped in fear. "Three!"
Jack grabbed her by the knees using the crook in the stick and spun her towards Janet who caught her hands and she gave her a little spin to get her to the safe spot on the ice. The spin that both she and her brother her made them slide over to the cracking area.
The little girl leaned up on her arms, smiling at them.
Both Jack and Janet were proud and please; it was cut off by the ice cracking beneath their feet and they fell into the freezing water.
The young kid screamed "Jack! Janet!"
Jack and Janet sank deep into the pond's depths with their eyes looking up at the moon. The Moon brightened and widened at seeing such a powerful act of love from two teenagers. It knew immediately that they destined for great things. As the twins sank below the ice, their hair turned white in the moonlight. As they opened their eyes, the memory faded.
Jack and Janet gasped still holding their tooth-boxes. Baby Tooth sitting nearby on the floor blinked at them.
"Did you see- Did you see that?" Jack asked Baby Tooth who just shook her head in response.
Janet laughed and she picked her up and she chittered along with their excitement. "It- it was- it was us two! We had a family! We had a younger sister!"
"We saved her!" Jack exclaimed in excitement.
Both he and Janet laughed hysterically but then it stopped they finally realised the question they had been asking for 300 years.
"That's why you chose us," Jack realised as he and Janet gazed up at the Moon shining above their heads having been proud as they had finally found the reason for their purpose. "We're – We're Guardians,"
The twins looked at each other.
"It's who we're meant to be," Janet realised. They both stood up with Janet putting Baby Tooth in her hood.
"We have to get out of here," Jack declared.
"But how?" Janet asked. "Without my medallion and your staff, we can't fly,"
"Look," Jack spotted the broken sources of their magic lying nearby.
They knee-slid over to them, picking them up. Jack tries to fit the pieces back together whilst Janet laid her medallion pieces out in their original places but nothing happens.
Baby Tooth gave a small, sad squeak.
"Ah" Jack stood up and focused this time, creating a blue light in the crack of the staff. The light grows brighter. Meanwhile Janet closed her eyes to focus her mind; she position her hands over the medallion and soon the pieces magically merged back together.
A second later, the Frost Twins magically rocketed out of the crevice with Jack's staff whole and Janet's medallion glowing along with her restored wings laughing and cheering.
"Baby Tooth, we owe you one!" Janet cheered happily.
"Now let's go free your friends," Jack declared.