Book 4 in the Iron Gods campaign: A great threat is rising in Silver Mount, but a precious item belonging to a mysterious entity called Casandalee has yet to be found. With the Dominion of the Black still an ever-present danger, players must navigate a dangerous canyon, the Scar of the Spider, in hopes of learning more about their enemies, and to accomplish their mission.

In the town of Gafolweed, the market is in disarray: toppled barrows and collapsed tents spill their contents onto the muddy ground. Merchants and locals flee the scene as you arrive. In the midst of the destruction stands a muscular, green-skinned humanoid—an orc! Three bodies lie near his feet, the victims of his bloody axe. He turns to you, a vivid red tattoo of a bleeding eye prominent on his brow. The orcs are gathering in numbers unseen in many generations and make war upon the people of the Borderlands. The cause of this deadly conflict is entwined with the history of the unholy mark that all the orcs now bear. Will your fellowship of budding heroes be able to quell the Wrath of the Orc God?