Mold is bad enough if you find it in your house. But when you find it in an off-world facility and that mold is a byproduct of murderous aliens, it's a little worse, and harder to clean. But that's what you'll be doing in The Purge, a new Zombicide: Invader scenario posted by CMON.
From the website:
An Abomination of incredible size passed through here, leaving a trail of destruction. We have no way of defeating if, but this facility may still be salvagable... We must act quickly or the mold is going to take over everything!
This is a very hard scenario for Zombicide: Invader. Are you ready to face The Purge?