The Escape from the Leipzig Dungeon

Leipzig in the deepest Middle Ages... shackles are placed around your ankles, very little light penetrates the dungeon. Just before the jailer closes the door, you hear him say with a mocking smile, "The executioner will be here in an hour...". What has happened? Why is your community locked in the dungeon? Free yourself from the shackles, solve the story of your captivity and find a way to freedom before the executioner arrives!