An early reader level 3-4 illustrated chapter book about 4th grade Martians on a snow day. Snow storm arrives overnight. That means tomorrow will be a snow day. School will be closed The Martian 4th graders use their Martian antennas to text, "Hooray for snow day " But Mercury Mars isn't ready for a snow day Mercury wants to compete in the sled race but his old sled is "yuk." He must quickly desigs and builds a new one. He wants a rocket sled. Can he find parts for it? Can he build it in time? And so starts the snow day adventures of fourth grade friends Mercury Mars, Aurora Corona and Jupiter Jones and the Super Red Rocket Sled. Snow day is a fun time, but the value of friendship is revealed as the mini-Martians face challenges of building together, paying attention to warning signs and helping a friend when a bully (Troll-Bominable Snow Martian) comes calling. Will a "C-minus" hovering robot turn out to be "A-plus" when called upon to help? Will Mercury Mars and his red rocket sled compete in the snow day sled race? Will he be able to help save a friend in need? Fourth grade Martians on a snow day. What's more fun?: -)