CMON's posting up new Zombicide scenarios all month. This week, it's Black Plague that gets the new one. You can head over and get A Thousand Mazes to Die now from their website for free.
From the post:
The second scenario for our month of ZombiMadness has arrived! Today's scenario was written by one of our contest winners, Beatrice Musu.
Ok, so the only exit is locked behind a door, and we have no idea where the key is. Think things can’t get any worse? Well, also there’s an Abominotaur.