From the back of the adventure:
Armed with ancient fomorian magic, the troll-chief Skalmad has sworn to destroy the small border-town of Moonstair. Somewhere in the depths of the Trollhaunt - a vast wilderness of marsh, moor, thicket and hill - Skalmad plots his next attack. For the first time in centuries, the monsters of the Trollhaunt have a leader with the wits and willpower to reforge the old realm of the trolls. But who dares to stand against Skalmad, King of the Trollhaunt Warrens?
Contents: 32 page guide, 64 page encounter guide, double sided battle map.