Magic, danger, and adventure abound for messenger Karigan G'ladheon in the fourth book in Kristen Britain's New York Times-bestselling Green Rider fantasy series Over a millennium ago, Mornhavon the Black, heir to the Arcosian Empire, crossed the great sea hoping to conquer Sacoridia. Mornhavon and his armies were defeated--but not before their general had resorted to desperate, dark magic that rendered his twisted spirit immortal. Finally, Mornhavon was captured and imprisoned in Blackveil Forest, and the forest's perimeter was sealed by the magical D'Yer Wall. In the many centuries since, knowledge of magic has disappeared from Sacoridia due to the fear and prejudice of a people traumatized by the memory of Mornhavon's terrifying sorceries. Even the protective magic that created and maintained the D'Yer Wall has been lost, and the once-impermeable barrier has been breached, allowing Blackveil's malignant influence to seep into the lands beyond once again. Karigan G'ladheon is a
