Rumor has it the Raven, a secret society with fingers in the British government, guards a treasure - and Lupin aims to collect despite the interference of one Sherlock Holmes.

To proceed with their plans, Lupin and co. need to get the pesky Sherlock Holmes out of the picture, but evading the legendary detective proves to be a monumental challenge.

Lupin's after a historic railway ticket in the possession of Duke Marquis. It'll take teamwork to bring home the prize, but a certain butler wants to get in the way.

A pair of twins walk into a restaurant, and this isn't the start of a joke, or even a story by Ernest Hemingway.

Something strange is afoot as Lupin finds himself adrift in another place and time. An ancient clock may hold the key to returning home but getting close to it won't be easy.

More familiar faces appear as Lupin pursues the automaton clock, and soon his quest to go home turns into a far more complicated conspiracy.