The Scions of Shannara (Heritage of Shannara, #1)

Since the death of Allanon, life in the Four Lands has drastially changed. Yet Par Ohmsford still has some power of the Wishsong. And when a message from the ancient Druid, Allanon, reaches them, Par is ordered to recover the long-lost Sword of Shannara, and the glory that once was the Four Lands....