Book excerpt: In the world of Draenor, the strong and fiercely independent Frostwolf Clan are faced with increasingly harsh winters and thinning herds. When Gul'dan, a mysterious outsider, arrives in Frostfire Ridge offering word of new hunting lands, Durotan, the Clan's chieftain, must make an impossible decision: Abandon the territory, pride and traditions of his people, or lead them into the unknown.