The Book of Shadows — Stan Nicholls

Nightshade was once the best warrior in Delgarvo. But defeat at the hands of the evil sorcerer, Avoch-Dar, has left him without his sword arm -- a warrior deeply wounded. Now Avoch-Dar has returned and intends to lay waste to Delgarvo. Only Nightshade can stop him. But what use is a one-armed hero against such powerful enchantment? Then a prophecy is revealed. Only by recovering the fabled Book of Shadows can Nightshade defeat Avoch-Dar. To do otherwise is to court certain death.