THE FORSAKEN UNDERCROFT – A sprawling crypt lies deep below the forest floor where the Illagers believe they can continue their wicked work undisturbed. Will you stop them or will you get lost in the dark?
— In-game story
The creepy crypt is located in creeper woods. The dark corridors are filled with tombs and is crawling with mobs. It's also full of loot. There are switches that reveal hidden areas and bonus chests that appear as rewards for defeating mobs. The heroes' mission is to find the lost tome and make it out of the crumbling walkways.