"The snow came down faster than train crews could clear the tracks, piling up in drifts 20 feet high. At the Wellington train depot in the Cascade Mountains, two trains sat stranded, blocked in by snow slides to the east and west. Some passengers braved the storm to hike off the mountain, but many had no choice but to wait out the storm. But the storm didn't stop. One day passed, then two, three...six days. The snow turned to rain. Then, just after...

Kids love to eat snow! It looks a lot like ice cream... hey, maybe it really IS ice cream! Johnny Boo and Squiggle are excited to find out, unless the Ice Cream Monster eats it all first. Armed with his gigantic and mighty Ice Cream Fork, he seems unstoppable... until all that cold snow in his tummy knocks him down for the count. Can Johnny Boo and Squiggle warm up their frozen frenemy with mittens from their secret mitten box? Or will they get lost...

Despite disagreements on the wisdom of the adventure, Rainbow Tinseltail and the other unicorns set out for Snowbelle Mountain to find out if Yetis are real--and when they get caught in a blizzard and take shelter in a cave they find the answer to their question.