Daemon Lord — Brian K. Stoner

The Daemon army has laid siege to Rhanestone Keep, the last stronghold guarding the free lands. Serana, the Sorceress High Priestess and last of her kind, struggles to complete the lost Armor of the Elements in hopes of driving back the Daemon force, but Rhanestone is running out of time. When they learn that the final piece of the Armor has been stolen, Serana and her freinds are forced into a deadly game of magic and intrigue with the mysterious Lady Firehair. Innocent and beautiful as she appears, no one, not even the fabled Serian of Music, can be certain what lies behind her fierce red eyes.