The Shannara Trilogy, Volumes 1-3

Long ago, the wars of the ancient Evil had ruined the world and forced mankind to compete with many other races – gnomes, trolls, dwarfs and elves. Half-elfin Shea Ohmsford learns that the supposedly dead Warlock Lord was plotting to destroy the world and the sole weapon against this Power of Darkness was The Sword of Shannara, which could only be used by a true heir of Shannara. The Elfstones of Shannara is the only protection Wil Ohmsford has as he sets out on a perilous quest to protect a seed from the Ellcrys – a tree created by Elven magic that is dying, loosening the spell of Forbidding that bars the hordes of vengeful Demons from the Races of Man. And in The Wishsong of Shannara an ancient evil is stirred to life and threatens to destroy mankind.