Sometimes Iris wishes her mom and aunt still remembered that there are unicorns behind Magic Moon Stables. But the women don't know--or rather, don't remember--that unicorns exist. So why does their childhood friend Annie know about the unicorns? Not only does Annie know, but she also wants to use Rainbow Mist's magic . . . and maybe the rest of the herd's. Can Iris and Ruby protect the unicorn magic before it's gone forever? There are unicorns behind Magic Moon Stable, but no one except Iris and Ruby know they exist. As Unicorn Guardians, it is their job to protect the unicorns and their magic to keep them safe from the outside world.