Bungo Stray Dogs: 55 Minutes

"“On that day, Yokohama ceased to exist.”"Bungo Stray Dogs : 55 Minutes is the 4th light novel of the series. It takes place some time after the Guild's fall (presumably), in a mysterious man-made mechanical floating island named Standard Island.

The novel introduces new characters such as Jules Verne and H.G. Wells, as well as the Colonel from France who is possibly linked to the Mimic's incident.

Plot
The Armed Detective Agency received a request to catch a thief in a certain mysterious island. ‘To safeguard the European white truffles worth 1 million Euro for as long as it’s on this island’, is the request from the island's captain.

However, as they went deeper into the mission, things didn't turned out the way the agency expected to be. What kind of dark secrets will be unfolded with the new discoveries?

And... will Yokohama truly cease to exist?