It may look like a simple wire device, but the Beccaria Cage could be the cure for Aubrey's condition: a way to reunite his body and soul. But can Aubrey solve its mysteries while Dr. Tremaine's warmongering machinations gather pace? After magical confrontations, near-death experiences, and the appearance of new allies and new enemies, Aubrey decides that there is only one thing to do: carry the fight to the enemy. Thanks to a fortuitously timed symposium, Aubrey, George, and Caroline accompany Lady Rose and Prince Albert to Holmland—into the heart of hostile territory—only to find the city of Fisherberg infested with ghosts, brigands, and shadowy figures with agendas of their own. While trying to prevent a war, could Aubrey Fitzwilliam inadvertently trigger one?