"Iris cannot wait for Heartsong to have her foal. Unicorns go into the Fairy Forest to have their babies, so Iris isn’t surprised when Heartsong goes missing for a few days. Yet when the unicorn does not return, Iris and Ruby have to go in and find her. The Fairy Forest is filled with trickster magic and can be a dangerous place. Can Iris and Ruby find Heartsong and her missing foal before it is too late? 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."

"Ruby’s new classmate, Cole, has a mysterious key. It looks a lot like Ruby’s key to the Magic Gate. Could Cole be a Unicorn Guardian too? But there are bigger problems in the Enchanted Realm. Starsong was stolen by dragons and taken to the Fire Mountains. And when the moon is full, the dragons will feast. Can Ruby and Iris rescue Starsong before it’s too late? 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."

Iris is preparing for her school’s talent show with her the Dance Divas. But Iris doesn’t like dancing and would prefer to do a magic show. She’s scared to admit this though. What if her friends don’t accept her anymore? Iris fears she would be like Lyric. Lyric has always stood apart from the other unicorns. She goes into the Fairy Forest on her own. She never stays with the herd. Determined to discover the unicorn’s secret, Iris follows Lyric into the forest. Why is Lyric such a misfit? There are unicorns behind Magic Moon Stable, but no one knows they exist except Iris and Ruby. As Unicorn Guardians, the two girls must protect the unicorns to keep them safe from the outside world.

Iris would usually love to go visit the unicorns with her younger sister Ruby. But with a big school report due the next day, Iris has to focus. She doesn’t have time to visit the unicorns. And she is not in the mood to listen to Ruby’s problems. But when Ruby goes missing, Iris worries she’s made a big mistake. With the help of stallions Ember Shadow and Tempest, Iris searches the Enchanted Realm for Ruby. Can she find her sister and make things right before it’s too late?

Something is wrong in the Enchanted Realm, but Ruby can’t figure out what. The stallions have scratches on them. The other unicorns hide under the trees instead of playing. Ruby wonders if the herd’s newest member, Lucky, is to blame. Meanwhile, a new girl at school is being a bully. She makes fun of Ruby for believing in unicorns. Can Ruby help bring peace back to the Enchanted Realm? And can she figure out what to do with her own bully? There are unicorns behind Magic Moon Stable, but no one knows they exist except Iris and Ruby. As Unicorn Guardians, the two girls must protect the unicorns to keep them safe from the outside world.

Iris takes her role as Unicorn Guardian very seriously. So when a local newspaper article talks about magical unicorn horns, she is extra careful about keeping the unicorns’ secret. But then a news reporter comes to Magic Moon Stable. He insists there are real unicorns there. And he is determined to find a unicorn horn that he can sell for lots of money. Can Iris and her sister Ruby outsmart the reporter? Can they keep the unicorns safe? There are unicorns behind Magic Moon Stable, but no one knows they exist except Iris and Ruby. As Unicorn Guardians, the two girls must protect the unicorns to keep them safe from the outside world.

It's finally summer, and Ruby can’t wait to play with her new friend, Zelda. Then she learns that Zelda is going on vacation with her family, while Ruby is stuck at home. Ruby’s sister Iris reminds her of the Enchanted Realm and encourages her to go on an adventure. But Ruby has seen most of the magical land. She’s explored the Fairy Forest, the Fire Mountains, and the Diamond Desert. She’s made friends with unicorns and dragons. What else is there to discover?