The Hidden Shrine of Xarak

From the introduction: Raiding bullywugs in the region kidnapped some of the local farmers’ children and took them into the Marsh Wood. One local saw them being taken to a nearby cemetery north of the town of Delegar at the edge of the woods. It is said that a dark follower of Xarak, the god of death and destruction, now inhabits one of the mausoleums and plans on sacrificing the children. Can your group stop his despicable ritual before it’s too late?