At last, the orc nation of Belkzen is on the offensive! As their ally Ardax gathers his army, the PCs scout ahead to clear the way and infiltrate Wyvernsting, capital of orc traitors. To sneak into the city, they must liberate the Drowning Sands orcs and borrow boats able to cross a quicksand sea. Once inside Wyvernsting, the PCs must sabotage the defenses, motivate rebellious factions to rise up against their enemies, and finally join Ardax's forces in besieging the city. Yet when the dust clears, the PCs identify the root of the undead uprising that's ravaged the land: a haunted divinity that dwells high in Belkzen's mountains. "Destroyer's Doom" is an orc-focused Pathfinder adventure for four 9th-level characters. The adventure concludes the Triumph of the Tusk Adventure Path, a three-part monthly campaign in which an eclectic band of dignitaries become battle-hardened survivalists fighting for orcs' homeland and independence. This volume includes opportunities to continue the adventure, an exploration of orc faiths, a gazetteer of the treacherous city of Wyvernsting, new magic items, and an assortment of new creatures that haunt Belkzen's mountains and silt seas. Each monthly full-color softcover Pathfinder Adventure Path volume contains an in-depth adventure scenario, stats for several new monsters, and support articles meant to give Game Masters additional material to expand their campaign.