World of Warcraft: Beyond the Dark Portal魔兽世界：穿越黑暗之门 ISBN 9781416550860

　　The aging orc shaman Ner'zhul has seized control of the Hordeand reopened the Dark Portal. His brutal warriors once againencroach upon Azeroth, laying siege to the newly constructedstronghold of Nethergarde Keep. There, the archmage Khadgar and theAlliance commander, Turalyon, lead humanity and its elven anddwarven allies in fighting this new invasion.　　Even so, disturbing questions arise. Khadgar learns of orcishincursions farther abroad: small groups of orcs who seem to pursuea goal other than simple conquest. Worse yet, black dragons havebeen sighted as well, and they appear to be aiding the orcs. Tocounter Ner'zhul's dark schemes, the Alliance must now invade theorcs' ruined homeworld of Draenor. Can Khadgar and his companionsstop the nefarious shaman in time to stave off the destruction oftwo worlds?