It's a good thing the spell of eternal winter has now been lifted because you are about to cry a river after you meet the kingdom of Arendelle's newest little princess, Avery Huffman.

"Frozen" voice actress Kristen Bell made a very deserving little girl's day when she passed along the news that Queen Elsa wanted to officially crown the child, who was recently diagnosed with DIPG (Diffuse Intrinsic Pontine Glioma), an inoperable brain tumor, and is currently enduring a series of radiation treatments.

Bell was connected to Avery's story through a friend of her father's and sent along the touching voice message to help lift her spirits, and it worked.

"Like roughly 93% of all little girls in the United States, Avery loved the movie 'Frozen,'" wrote her father, Brandon Huffman. "We've probably watched or heard it over 200 times. I've sang my share of duets of 'Love Is an Open Door' with Avery while watching numerous performances of 'Let It Go,' 'Do You Want To Build a Snowman' and 'For the First Time In Forever.'"

"Avery's favorite character in the movie is Anna, who was voiced by Kristen Bell," added Huffman.

Bell's voice message for the brave little one made sure to reference her favorite toy and the names of her siblings, just to make sure she knew it was a special message made just for her.

"Hi Avery! This is Princess Anna of Arendelle. I just wanted to call and say hello. So, hello! I hope you're having a great day and playing a lot with HoppyJumpy. I love bunnies," said Bell in character as Anna. "Hold on. What's that, Elsa? Wow, OK, I'll tell her. Avery, my sister Elsa says that she's heard that you've been such a good girl and that you've been so brave, she has decided to crown you as an honorary princess of Arendelle. Wow! That's so exciting! I think you'll make a great princess. Well, I've gotta go build a snowman with my friend Olaf now, so, would you tell Addison, Alex and Kate that I said hello? OK? Alright, bye bye!"

"Avery couldn't stop talking about it and was so excited to have her sisters and brother hear it," Huffman wrote about the surprise. "Despite being incredibly busy, Kristen Bell took the time to make a little 6-year old girl's day. It was awesome for Avery and us, and emotional for us as well."

Find out more about Avery Huffman's journey here.