Meanwhile, in the castle of Arendelle, Vampirina, one of the queen and king's children was sleeping peacefully on her bed; but then Sonic, his younger brother, tried to wake her up "Vee,Vee!"(he call her Vee as her nickname) "Wake up, wake up! Stop sleeping!" Sonic shouted while shaking her "Sonic, go to bed, okay?" Vampirina said very tired "Ugh, I don't want to" Sonic answered "The sky woke up and so am I, now we need to play" "Well, so go and play by yourself" Vee said and she shoke to get Sonic out of her, then Sonic said getting up to her bed again "Do you wanna build a snowman?" And so, Vampirina opened her eye to say "Okay"
After that Sonic run downstairs pulling his sister out cause he was so impatient "Faster! Faster! Faster! Faster! FASTER!" Sonic shouted to his sister and she was whispering to him to don't wake up their parents. After they made it to the hall, Sonic said "Do the magic! Do the magic!" And Vee created a snowball with her powers "Ready?" Vampirina said and Sonic shoke his head saying "yes" And then Vee throw the snowball to the top of the hall and it make it snow on the hall "This is awesome" Sonic said very excited "Watch this" Vampirina said and she stepped on the floor and make it turn into ice. They were having fun, and also they make a snowman with a ghost form "Hi, they call me Demi, and I love hugs" Vee said doing the snowman ghost voice "I adore you Demi" Sonic said and he hugged the snow ghost. They have fun, untill something happen; in one of their games, Vampirina was making mountains for Sonic to jump to "Ready!" "Catch me!" "I got you!" "More!" But in a moment, Vampirina slipped with the ice and Sonic jumped but there was no mountain to jump to! "Sonic!" Vee screamed, and accidentally, she shot a ray to Sonic  and he fell unconscious to the ground and Vee ran to him "Sonic?!" And she feel that he was cold and in his hair, a little light-blue stripe appeared "Mom! Dad!" Vee screamed very scared and she started to cry over Sonic "Don't be scared Sonic, I'll take care of you" Vee said while crying. Their parents came running as fast as they can when they heared Vampirina screaming. King Jack and Queen Rosalina looked at Vampirina holding Sonic "Vampirina, what did you do?  He is getting out of control!" Jack said very shocked "It was an accident. (looking to Sonic) I'm sorry Sonic" Vampirina said. Queen Rosalina hold Sonic and she was feeling his tempeture, it was too cold "He is very cold" Rosalina said very worried "I know where to go" Jack said and he ran to the library. He looked for a book and when he find the answers, he took his family to see the most knowed healing creatures: the ponies.