Megan the Mallowcorn is celebrating her birthday in Bubblegum Park on a giant marshmallow bouncy-castle. But when the mischievous Horn Snatcher starts stealing sugar from the top of Sugar Frost Mountain, Megan is forced to use her unicorn power to stop the Munch Town meanie.
Will making the clouds rain (very big) marshmallows be enough to stop the silly creature climbing up a mountain?
