Snow day! School's closed! A beautiful blanket of white covers the ground, the perfect setting for an all-out, action-packed, slushy snowball fight! So get out your fuzzy hat. Slip on your moon boots. Build a fort. Then be very quiet and keep your eyes peeled, until...attack! Snowball fight! From toboggan shields to fireside cocoa, actor and comedian Jimmy Fallon, in his picture-book debut, brings the cold-weather fun of the ultimate snowbound skirmish to life.