Arriving in Marienburg after the sinking of the Gilded Drake huntress Elise and wizard Barbossa find the city reeling from the actions of a boy who may be Sigmar Reborn. They join Bretonnian Knight Errant Sir Guillame de Bordeleaux in investigating a crusade that have formed around the boy, an investigation which will take them from the slums of Marienburg to the fetid filth of the Cursed Marshes.