I have just stared The Great Hunt, book #2 of The Wheel of Time by Robert Jordan.
The Horn of Valere is found and travels south to Illian, yet the hunters and the hunted are each the other in this game. Darkfriends wearing white and those true to the Light in conflict despite the return of spring. As the Prophesies of the Dragon state, "Let tears flow, O ye people of the world. Weep for your salvation."
Let the Dragon ride again on the winds of time.