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?

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.

Recounts the quest of the last unicorn, who leaves the protection of the enchanted forest to search for her own kind, and who is joined by Schmedrick the Magician and Molly Grue in her search.

Thirteen-year-old Skandar Smith has always wanted to be a Unicorn rider, but when the mysterious Weaver steals the most powerful unicorn in the world, Skandar must face sky battles, ancient secrets, and bloodthirsty unicorns in order to save his island.

As the magic spells Marigold casts to help Phoebe navigate the challenges of school life mount up, both Phoebe and Marigold begin to wonder if sometimes they might be taking things just a little too far.

In order to earn their Bravery Patches, Bo and the other unicorns of Sparklegrove Forest have to camp out in the forest for three nights; but the night is full of frightening noises, and when a misunderstanding offends some pixies, the unicorns resolve to face their fears and confront the "monsters" who are stealing the pixies' houses.

Follow Phoebe and her unicorn, Marigold, as they experience somewhat-spooky Halloween parties, ecstatic snow days, and looming summer reading assignments. Although the journey of growing up can sometimes be difficult, along the way Phoebe and Marigold discover something more enduring than goblin fads, unicorn spa vacations, and even a Spell of Forgetting--their one of a kind friendship.

Greta the goblin princess is bored, but when unicorns Bo and Sunny try to cheer her up by using their powers to make her queen (for a day), they discover just how much trouble a bored -- and spoiled -- goblin princess can cause for everyone around her.

"Bo Tinseltail and friends meet a kitsune who helps them find a cure after they all catch the Glitter Bug"--

Rainbow Tinseltail and the other students at Sparklegrove School for Unicorns are excited when a brand new unicorn, Sunny Huckleberry, enters the school, but Sunny does not know what his special magical power is, and the thought that he might not have any power at all is making him unhappy; Rainbow (whose power is granting wishes) is eager to help him--even though he does not seem to want her help.