Marshmallow Martians: Museum Sleepover

Get ready for some out-of-this-world hilarity with the Marshmallow Martians! These lovable aliens are on the hunt for something BIG, and they know just where to find it: the natural history museum! The entertaining third installment of this delightful graphic chapter series is bound to get children giggling. Perfect for kids ages 5-8! The Marshmallow Martians have a contest to win on Planet Moop! They need to find the best, biggest, and most unexpected item. They know they can win with something