World of Warcraft: Lord of the Clans: Warcraft series, Book 2 (Unabridged‪)‬

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 the 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. 

Slave. Gladiator. Shaman. 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....