Hard Helix is the first supplement for Mutant City Blues, the super-powered police procedural game. Mutant City Blues creator Robin D. Laws brings you four ready-to play case files to puzzle and challenge your local Heightened Crimes Investigative Unit.

As members of the elite Heightened Crime Investigation Unit, you and your fellow detectives solve crimes involving the city’s mutant community. When a mutant power is used to kill, you catch the case. When it’s a mutant victim in the chalk outline, you get the call. And when it comes time for a fight, you deploy your own extraordinary abilities to even the odds.