WarCraft Series by Christie Golden, Richard A. Knaak, Jeff Grubb, Chris Metzen

The noble Paladin, Tirion Fordring, had always believed the savage Orcs to be vile and corrupt. He had spent his life fighting ceaselessly to protect humanity from their foul treachery. But an unexpected act of honor and compassion sets in motion a chain of events that will challenge Tirion's most fundamental beliefs, and force him to decide once and for all who are the men -- and who are the monsters.

In the mist-shrouded haze of the past, the world of Azeroth teemed with wondrous creatures of every kind. Mysterious Elves and hardy Dwarves walked among tribes of man in relative peace and harmony -- until the arrival of the demonic army known as Burning Legion shattered the world's tranquility forever... moreIn the mist-shrouded haze of the past, the world of Azeroth teemed with wondrous creatures of every kind. Mysterious Elves and hardy Dwarves walked among tribes of man in relative peace and harmony -- until the arrival of the demonic army known as Burning Legion shattered the world's tranquility forever. Now Orcs, Dragons, Goblins, and Trolls all vie for supremacy over the scattered, warring kingdoms -- part of a grand, malevolent scheme that will determine the fate of the world of WarCraft A terrifying upheaval among the highest ranks of the world's Wizards sends the maverick Mage, Rhonin, on a perilous journey into the Orc-controlled lands of Khaz Modan. What Rhonin uncovers is a vast, far-reaching conspiracy, darker than anything he ever imagined -- a threat that will force him into a dangerous alliance with ancient creatures of air and re if the world of Azeroth is to see another dawn. less

Lord of the Clans (Warcraft, Book 2)

In the mist-shrouded haze of the past, long before the beginning of recorded time, there stood the world of Azeroth. Every kind of magical being strode the countryside among the tribes of man, and all was at peace — until the arrival of the demons and horrors of the Burning Legion and their baneful Lord Sargeras, dark god of chaotic magic... moreIn the mist-shrouded haze of the past, long before the beginning of recorded time, there stood the world of Azeroth. Every kind of magical being strode the countryside among the tribes of man, and all was at peace — until the arrival of the demons and horrors of the Burning Legion and their baneful Lord Sargeras, dark god of chaotic magic. Now Dragons, Dwarves, Elves, Goblins, Humans, and Orcs all vie for supremacy across the scattered kingdoms -- part of a grand, malevolent scheme that will determine the fate of the world of  The Guardians of Tirisfal: a line of champions imbued with godlike powers, each one through the ages charged with fighting a lonely secret war against the Burning Legion.   Medivh was fated from birth to become the greatest and most powerful of this noble order. But from the beginning a darkness tainted his soul, corrupting his innocence and turning to evil the powers that should have fought for good. Torn by two destinies, Medivh's struggle against the malice within him became one with the fate of Azeroth itself...and changed the world forever. THE LAST GUARDIAN — An original tale of magic, warfare, and heroism based on the bestselling, award-winning electronic game from Blizzard Entertainment. less

In the mist-shrouded haze of past, the world of Azeroth teemed with wonders of every kind. Magical races and ancient beasts strode alongside the tribes of man -- until the arrival of the demonic Burning Legion and its baneful lord, Sargeras. Now dragons, elves, orcs, and dwarves all vie for supremacy across their scarred, war-torn kingdoms -- all part of a grand, malevolent scheme to determine the fate of the world of.. moreIn the mist-shrouded haze of past, the world of Azeroth teemed with wonders of every kind. Magical races and ancient beasts strode alongside the tribes of man -- until the arrival of the demonic Burning Legion and its baneful lord, Sargeras. Now dragons, elves, orcs, and dwarves all vie for supremacy across their scarred, war-torn kingdoms -- all part of a grand, malevolent scheme to determine the fate of the world of... WARCRAFT DAY OF THE DRAGON: A terrifying upheaval among the highest ranks of the world's Wizards sends the maverick Mage, Rhonin, on a perilous journey into the Orc-controlled lands of Khaz Modan. What Rhonin uncovers is a vast, far-reaching conspiracy, darker than anything he ever imagined -- a threat that will force him into a dangerous alliance with ancient creatures of air and fire if the world of Azeroth is to see another dawn. LORD OF THE CLANS: Slave and Gladiator. Shaman and Warchief. The enigmatic Orc known as Thrall has been all of these. Raised from infancy by cruel human masters who sought to mold him into their perfect pawn, Thrall was driven by both the savagery in his heart and the cunning of his upbringing to pursue a destiny he was only beginning to understand -- to break his bondage and rediscover the ancient traditions of his people. Now the tumultuous tale of his life's journey -- a saga of honor, hatred, and hope -- can at last be told. THE LAST GUARDIAN: The Guardians of Tirisfal were a line of champions imbued with godlike powers, each one through the ages charged with fighting a lonely secret war against the Burning Legion. Medivh was fated from birth to become the greatest and most powerful of this noble order. But from the beginning a darkness tainted him, corrupting his soul and turning to evil the powers that should have fought for good. Medivh's struggle against the malice within him became one with the fate of Azeroth itself...and changed the world forever. OF BLOOD AND HONOR: The paladin Tirion Fordring had always believed the Orcs were vile and corrupt, but an unexpected act of honor and compassion sets in motion a chain of events that will challenge his most fundamental beliefs and force him to decide, once and for all, who are the men...and who are the monsters. less