Medea by Rosie Hewlett

Medea longs for a different life. Since childhood, she has been separated from her sister, shunned by her mother, and persecuted and tormented by her brother and father. All because of a unique and dangerous gift: witchcraft.

But when a dashing young hero, Jason, arrives to claim the famed Golden Fleece that her father protects, Medea sees her opportunity to escape. Her offer to help Jason overcome the trials set by her father sets in motion a journey that will test every ounce of her strength, magic and loyalty; a journey that will see her battle monsters, dethrone kings and fall in love.

But when faced with the ultimate betrayal, Medea is driven to an act of desperation so brutal it rips apart the lives of everyone involved...