"Green Rider" is a fantasy novel written by Kristen Britain. It follows the story of a young woman named Karigan G'ladheon, who becomes a messenger for the Kingdom of Sacoridia. After fleeing from her troubled past, she discovers her unique abilities and the importance of her new role. As a Green Rider, Karigan must navigate a world filled with magic, danger, and political intrigue. The novel explores themes of bravery, loyalty, and the struggle between good and evil, as she faces various challenges that test her skills and resolve.