"It's a snow day!" The schools are closed! Robby's sisters want to stay inside, and their parents are busy, but Robby and his dog Zippy know what to do: run and kick and lick and skid in the new snow. Their enthusiasm soon involves the whole family in a spirited snowball fight and a snug evening by the fire. Barbara M. Joosse's exuberant story and Jennifer Plecas's lively illustrations capture the pure fun of an unexpected winter holiday.