Ryonsuke is accused of killing visiting professor John Watson Wilson.

Thanks to a certain famous detective, Ryonsuke is accused of murdering his travel compatriot on a ship heading for England.

Rhyuonsuke and Susato haven't even found a place to stay in London when they are given their first court case.

The case? A murder in a moving stage coach.

The start of Natsume Souski's troubles in London.

A commotion in a pawnshop leads to a murder. But something bigger lurks in the background.