Rhiannon's Ride Series by Kate Forsyth

One-Horn's daughter is not like the others of her kind. Born of a human father, she lacks the horns so prized by her people and is scorned even by her own mother. Her only chance for escape is to capture one of the legendary flying horses and ride it to freedom.So this strange, feral girl begins a dangerous journey of love, death, and betrayal that will earn her a new name: Rhiannon, the rider no one can catch... moreOne-Horn's daughter is not like the others of her kind. Born of a human father, she lacks the horns so prized by her people and is scorned even by her own mother. Her only chance for escape is to capture one of the legendary flying horses and ride it to freedom.So this strange, feral girl begins a dangerous journey of love, death, and betrayal that will earn her a new name: Rhiannon, the rider no one can catch.Rescued and taken to the home of Lewen, a young man just beginning to understand his own magical potential, Rhiannon is fascinated by the human world and by Lewen. Together they travel through a land where the dead walk and ghosts haunt the living, a place where Rhiannon encounters dark forces that endanger all of Eileanan. But to save the land, she must convince Lewen and the other apprentice-witches to trust the word of a wild half-human girl. less

Rhiannon, a wild and fierce half-human girl, tamed a winged horse to escape the vicious satyricorn tribe who raised her. In the human world, the handsome apprentice-witch Lewen has convinced her to stay with him and learn to use her strong magical talents. But before her training can commence, Rhiannon must answer for a past crime in... THE SHINING CITYImprisoned in Sorrowgate Tower, Rhiannon awaits trial for murder and treason... moreRhiannon, a wild and fierce half-human girl, tamed a winged horse to escape the vicious satyricorn tribe who raised her. In the human world, the handsome apprentice-witch Lewen has convinced her to stay with him and learn to use her strong magical talents. But before her training can commence, Rhiannon must answer for a past crime in... THE SHINING CITYImprisoned in Sorrowgate Tower, Rhiannon awaits trial for murder and treason. While her days are spent in anticipation of Lewen's visits, her nights are haunted by the malevolent ghost of a dead queen, hungry to live again. But not many care to listen to the prophetic dreams of a girl who has already been convicted in most people's minds.Then Lewen begins to cool toward her, and Rhiannon suspects one of the princesses has worked a spell to steal his heart. In a world filled with dark spirits and forbidden magic, conspiracy and intrigue, Rhiannon vows to win back her lover and escape once more, to save the land before it's too late.... less

An evil necromancer has kidnapped the princess Olywynne and her twin brother, plotting to spill their blood-for revenge, and to restore his own family to life. Chaos reigns in the capital, and no one can stop the necromancer but Rhiannon and her winged mare. But can she bring herself to rescue the woman she hates more than anyone-Olywynne, her rival for the apprentice-witch Lewen's love-especially when she stands to lose everything she holds dear in the effort?