Kujo is shocked to discover that the Marquis has moved his daughter, Victorique, to a convent in Lithuania. With the inspector's assistance, Kujo travels there to rescue her when he learns of an unusual performance and a bigger political plot.

Victorique and Kujo find themselves in the middle of a bloody feud between the Ministry of the Occult and the Royal Science Academy of Saubure. In a train headed toward disaster, how will the friends save themselves and everyone aboard?