“Book Descriptions: Heart of War is a short story by Sarah Pine featured on the official site. It is the first in the Leaders of Azeroth series, released on December 4, 2010 and centers on the orcs' Warchief Garrosh Hellscream
The first story of [the Leaders of Azeroth series], "Heart of War," offers a glimpse into the experiences that have shaped Garrosh into the leader he is today: his heroic exploits in Northrend; his uncertainty as he arrived in the imposing Horde capital of Orgrimmar; and most importantly, his friendship with his mentor, the warchief he would eventually replace, Thrall.” DRIVE