The Elfstones Of Shannara The Original Shannara Trilogy, Book 2.

THE ELFSTONES OF SHANNARA An ancient evil threatens the Elves, for the Ellcrys the tree created by long-lost Elven magic-is dying, losing the Spell of Forbidding that bars the hordes of vengeful Demons from the Races of Mankind. Allanon, legendary guardian of Earth, summons Wil Ohmsford to guard the Elven girl Amberle on a perilous quest as she carries a seed from the Ellcrys to the mysterious Bloodfire, there to be quickened into a new Ellcrys....