A storm is coming. Big Oak told Ruby Butterfly and Ruby Butterfly told Ruby the girl. But how does Ruby the girl tell everyone else? Her grandmother, Mammaloose, will say it's Ruby's imagination – not real. Like Ruby's memories of her mama and daddy – just make-believe. But this storm isn't make-believe. It's coming hard and strong, set to destroy everything in its path. And if the storm is real, maybe Ruby's memories are, too.