Posing as the murdered Soothsayer, Roxane and her servant, Victorique and Kujo have boarded the Queen Merry. Once on board they discover they have fallen into another mystery, this one with deadly intent towards everyone.

Victorica manages to find the culprit behind the recent deaths at the village and to clear her mother's name by exposing the woman who framed her. However, when the woman attempts to escape, she starts torching the entire village, and Kujo must confront her while protecting Victorica with his life.

Kujo and Avril explore one of the school's towers and Avril figures that it is related to the legend of Leviathan, an alchemist who lived there decades before. Victorique stumbles on a pop-up book containing a cryptic message aledgely from Leviathan himself and when a death occurs at the top of the tower, she decides to investigate by herself.

Having escaped from the flood, Victorique, Kujo and the rest of the passengers of the Masquerade Express find themselves involved into a bloody contest for an elusive item that can shake the balance of power between the Academy and the Ministry of Occult.

By the Spring of 1925, all the pieces of Albert's plan have fallen into place. Kujo has been deported and Victorique has long since been imprisoned in the Sauville royal palace. Using her wisdom, Albert exposes Jupiter Roget's identity as a Gray Wolf to the other nobility and runs him out, then persuades King Rupert to make an alliance with the rising power of Germany. In the Winter of 1925, while Kujo has been enlisted into the Japanese military, Albert is named the new Prime Minister of Sauville and has Grevil bring Victorique out during the ceremony to show off his power. However, sometime before the ceremony Cordelia switched places with Victorique, and confronts Albert, revealing his crimes to the entire country. When one of the Brian Roscoe twins stages a terrorist attack on the ceremony, Cordelia engages Albert in a swordfight using a pair of knives as weapons and successfully kills him, but is slain herself by one of Albert's minions. Meanwhile, the other Brian, who has taken Victorique away in a stagecoach, attempts to kill her to erase Cordelia's "pain."