Mycroft's agents were outsmarted, and confidential documents have been stolen. You are tasked with locating a shadowy figure known only as M. It appears there is a worthy opponent at large on Cordona.

This DLC includes the following items:
'M For Mystery' Quest Line
The Clockwork Extortion
The Bridge Agent
Child of Cordona
Mysterious Detective Outfit
Plague Doctor Jon
Ice Cream Jon

The quest line will start automatically after the first main case (Ghosts of the Past) and combat tutorial have been completed.