The weirdest wish

"Everyone is warning Sparkleton not to wear the Pixie Cap. It grants one whole wish but has 843 rules! Sparkleton knows it's probably a bad idea, but what if it isn't? Will the Cap let Sparkleton wish for Shimmer Lake's most magical, snowy Winter Carnival ever? Or will Sparkleton's brr-illliant idea turn to slush?"--Provided by publisher.