A little girl and her brother play with her imaginary gold-horned unicorn that can float on water, fly, and turn herself into a fairy princess.

Acorna's people, the Linyaari, have begun reclaiming their homeworld from the ravages of the brutal Khleevi. But the first wave of explorers has unlocked a larger mystery about the origins of the Linyaari -- one that has led Aari, Acorna's beloved lifemate, on a dangerous journey from which he may never return. Setting off on a quest to find Aari, Acorna and her friends -- Captain Becker, Mac, Nadhari, and RK -- are forced to crash land on the beautiful...

The magic tree house carries Jack and Annie to New York City in 1938 on a mission to rescue the last unicorn.

When the Tooth Fairy is too tired to deliver a prize to a little girl with a wiggly tooth, Uni the unicorn is ready to help and, with a little magic, makes sure the little girl has something special to wake up to.

"The unicorn lived in a lilac wood, and she lived all alone... ...so she ventured out from the safety of the enchanted forest on a quest for others of her kind. Joined along the way by the bumbling magician Schmendrick and the indomitable Molly Grue, the unicorn learns all about the joys and sorrows of life and love before meeting her destiny in the castle of a despondent monarch--and confronting the creature that would drive her kind to extinction......

Having jumped into Luster, the land of unicorns, Cara makes a perilous journey to bring back her grandmother, The Wanderer, in order to release the Queen of the unicorns and allow her to die.

Aari has returned! Now he and his lifemate, the brave and beautiful Acorna, can finish rebuilding their once-decimated homeworld. Yet Aari's travels through time have left him oddly changed, and he barely remembers Acorna or their love. And as Aari's actions turn more sinister, Acorna must shift her attention to stopping the destruction of innocents by a vicious criminal. It is precisely the sort of weakness and confusion the dreaded Khleevi have...

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, while on Earth, Beloved and her hunters make final plans to jump to the fantasy land of Luster and drive the unicorns to extinction.

A unicorn, believing herself to be the last, searches for any others of her kind, while avoiding the malevolent Red Bull, the agent believed to have destroyed the rest of her herd. Along the way she is mistaken, ignored, attacked, and absessed about. She finally finds help from a magician named Schmendrick and a knight named Prince Lir.