From the file's introduction
The adventure begins with the Heroes having a meal in a small town in Castille. A group of the Castillian military sweeps through town, attempting to press all able bodied men into service to fight against the Montaigne. The Heroes Put up a valiant fight, but are rescued by a group of women who distract the military, and lead the Heroes in a secret tunnel beneath the city to safety.
Once there, the Heroes discover eight other women, hungry and battered, who claim to be the only survivors of an Inquisition attack against their boarding house. Their leader, among others, was captured and hasn't been seen since the attack. Since they did a favour for the Heroes, they would like one in return. Their sister house may be in danger, and they would like for the Heroes to evacuate it and lead the women to safety.
Once the Heroes arrive at the sister house, they must defend it against the Inquisitors. After the battle, it is discovered that those who were previously captured will be burned at the stake as heretics. The Heroes must now seek out and save them from a fiery death.