The unicorns are celebrating their favorite day of the year, complete with rainbows and sparkly butterflies, but when an impostor (a horse with a fake horn) arrives, will the party continue with all its glittery glory?

A human girl visits the Rainbow Realm, an enchanted land ruled by a circle of unicorn princesses, to help Princess Sunbeam regain her magical powers.

Secret agent Bubble07, who exactly resembles a stuffed toy, is on Earth to assess whether or not the unicorns should invade the planet--but despite some bizarre Earth customs like show-and-tell, and annoying Earth dogs, ultimately suggests that Earth would serve as an excellent vacation destination for unicorns.

Seeking to unravel the secret of the long enmity between unicorns and delvers, Cara travels through a strange underground world to the court of the centaur king; and while on Earth, Beloved and her hunters make final plans to jump to the fantasy land of Luster in order to drive the unicorns to extinction.

An earthquake shakes Zoey's house. Or maybe it's a unicorn-quake? An enormous new friend arrives in a lot of pain, and it's getting worse every day. Zoey must work with her mom and Sassafras to find a cure--and quickly!--

Unicorn Princess Bloom asks the human girl Cressida to help with final preparations for her birthday party, but when they discover quails destroying the party decorations and realize that the invitation to Princess Bloom's best friend has gone astray, they fear the celebration will be ruined.

After one of Ernest the wizard-lizard's spells goes awry, draining color from Princess Prism and her domain, the unicorn princesses call on the human girl Cressida to help Prism locate the Valley of Light's missing rainbow so she regain her magic and repaint the land and creatures.

"A story about a little girl that wants a reindeer for her birthday!"--Amazon website.

School's out! That means no more teachers, no more books, and lots of time to compliment Marigold Heavenly Nostrils on her good looks. In this third volume, Phoebe and her obligational best friend, Marigold, learn that summer still has plenty of surprises for the both of them.

Lauren does not believe in ghosts, but there is definitely something spooky going on down by the creek and one night, as Lauren and Twilight, her magical unicorn, fly over the woods near the scary tree house, they make a surprising discovery.